音标:[plæsen'teiʃәn] ;
[解、动]胎盘形成
n the formation of the placenta in the uterus
n arrangement of the ovules in the placenta and of the placentas in the ovary
词型变化:名词复数形式 : placentations

placentation的用法和样例:

词汇搭配

  • basal placentation基底胎座式
  • axile placentation中轴胎座式
  • apical placentation顶生胎座式
  • central placentation中柱胎座式

Prenuptial agreements, which are widely accepted in western countries, are still rarely paid attention to in China. But since the recent interpretation of the Chinese Marriage Law triggered widespread debate within Chinese society, prenuptial agreeme

发表于:2018-12-02 / 阅读(616) / 评论(0) 分类 世界各地新闻集锦

[00:03.89]CONVERSATION 1 [00:08.86]TELL ME ABOUT YOUR FAMILY [00:13.22]Announcer:National Flight 294 to Miami is delayed due to severe weather conditions. [00:22.88]Please stand by or additional information. [00:27.87]Maria: Oh no! I hate these long

发表于:2018-12-02 / 阅读(421) / 评论(0) 分类 新英语交谈注释版

[00:03.68]CONVERSATION 1 [00:08.75]HOW ABOUT COMING WITH US? [00:13.01]Debbie: Hi, Kenji. [00:17.45]Kenji: Hi, Debbie. Have a seat. How's it going? [00:22.91]Debbie: I'm OK. How are you doing? [00:27.48]Kenji: Pretty good. Listen ... [00:31.92]have y

发表于:2018-12-02 / 阅读(401) / 评论(0) 分类 新英语交谈注释版

[00:04.18]CONVERSATION 2 [00:09.46]COULD I HAVE YOUR NAME. PLEASE? [00:13.22]Officer: Yes. can I help you? [00:17.97]Ms. Paine: I'd like to open a savings account. [00:22.05]Officer: Certainly. First we'll have to fill out a few forms. [00:27.19]Coul

发表于:2018-12-02 / 阅读(515) / 评论(0) 分类 新英语交谈注释版

[00:04.41]CONVERSATION 1 [00:09.38]DO YOU KNOW WHERE IT IS? [00:13.92]Michelle: What are you doing? [00:18.49]Dominic: I'm cooking dinner tonight. [00:22.05]Michelle: That's great. Thank you. What are you making? [00:27.51]Dominic: A surprise. By the

发表于:2018-12-02 / 阅读(541) / 评论(0) 分类 新英语交谈注释版

[00:04.49]CONVERSATION 2 [00:09.35]WHAT DOES IT LOOK LIKE? [00:13.30]Luis: Teresa? ... I can't find the what-do-you-call-it. [00:20.66]Teresa: What can't you find? [00:24.50]Luis: You know. The thing. [00:28.26]Teresa: What thing? [00:31.50]Luis: Oh,

发表于:2018-12-02 / 阅读(548) / 评论(0) 分类 新英语交谈注释版

[00:03.21]CONVERSATION 2 [00:08.07]I LOVE THE SEASHORE. [00:12.43]Tom: This one looks great! I love the seashore. [00:19.98]Ellen: So do I. The sun ... the sand ... the ocean! [00:26.44]Tom: And listen to this! [00:29.99]What do you think of sailing,

发表于:2018-12-02 / 阅读(518) / 评论(0) 分类 新英语交谈注释版

[00:03.58]CONVERSATION 1 [00:08.54]AND WHAT WOULD YOU LIKE? [00:12.67]Ted: Everything looks good. What are you going to have, Julie? [00:19.33]Julie: I think I'll have the spaghetti and a salad. [00:24.08]How about you? What are you having? [00:28.16

发表于:2018-12-02 / 阅读(506) / 评论(0) 分类 新英语交谈注释版

[00:03.50]CONVERSATION 2 [00:08.36]WHAT DO YOU WANT TO DO? [00:12.43]Henry: Hi, Alice ... have you made any New Year's resolutions yet? [00:20.30]Alice:Just the usual.I'd like to lose some weight,and I want to save some money. [00:26.17]Henry: Come o

发表于:2018-12-02 / 阅读(476) / 评论(0) 分类 新英语交谈注释版

[00:03.29]CONVERSATION 2 [00:08.65]THAT COLOR LOOKS BETTER. [00:12.90]Allen: Excuse me.Could you help me?I'd like to exchange this sweater. [00:20.45]clerk: What's the problem with it? [00:24.01]Allen: It was a birthday gift, but I don't really like

发表于:2018-12-02 / 阅读(480) / 评论(0) 分类 新英语交谈注释版

[00:02.98]CONVERSATION 1 [00:08.25]COULD YOU HELP ME? [00:11.62]Clerk: Hi. Can I help you with something? [00:18.29]Paulina: Yes, please. We're looking for the men's department. [00:23.33]Clerk: It's right over there, by the escalator. [00:27.69]Dieg

发表于:2018-12-02 / 阅读(521) / 评论(0) 分类 新英语交谈注释版

[00:03.50]CONVERSATION 2 [00:08.46]WHY DONT'T WE MEET THERE? [00:13.22]Karen: Hello. Could I speak to Justin, please? [00:20.58]Justin: Speaking. [00:23.14]karen: Oh, hi Justin. This is Karen Hepburn. [00:29.31]We met at Chris and Jim's party. [00:34

发表于:2018-12-02 / 阅读(478) / 评论(0) 分类 新英语交谈注释版

[00:03.29]CONVERSATION 2 [00:08.33]WOULD YOU CARE FOR ANY DESSERT? [00:12.59]Waiter:OK,so that's one cheeseburger and one order of chicken wings,extra spicy. [00:21.13]Would you like something to drink with that? [00:24.69]Carol: Do you have any diet

发表于:2018-12-25 / 阅读(498) / 评论(0) 分类 新英语交谈注释版

[00:03.68]CONVERSATION 2 [00:08.72]COULD YOU CHANGE MY ROOM? [00:12.98]Guest: Excuse me. [00:17.35]Clerk: Yes? What can I do for you? [00:21.71]Guest: I just checked in, and there's a problem with my room. [00:27.38]Clerk: And what is the problem? [0

发表于:2018-12-25 / 阅读(473) / 评论(0) 分类 新英语交谈注释版

[00:04.00]CONVERSATION 1 [00:09.14]SO, WHERE ARE YOU FROM? [00:13.69]Brad: So, Paula, where are you from? [00:20.85]paula: I'm from Canada, originally. [00:24.79]Brad: From Canada? Where were you born? [00:29.65]Paula: Montreal. [00:33.41]Brad: When

发表于:2018-12-25 / 阅读(485) / 评论(0) 分类 新英语交谈注释版

Researchers Say Most Deaths of Newborns Preventable 研究人员表示大多数新生儿的死亡是可以避免的 From VOA Learning English, this is Science in the News. This week, we report on research that shows most newborn baby deaths could be

发表于:2019-01-12 / 阅读(444) / 评论(0) 分类 2014年VOA慢速英语(六)月

Grammar Girl here. Today's topic is verbification. Last week police used a Taser on University of Florida student Andrew Meyer as they struggled to remove him from an auditorium where Senator John Kerry was speaking. The Web has been filled with deba

发表于:2019-01-30 / 阅读(535) / 评论(0) 分类 英语语法 Grammar Girl

1.W: Congratulations to you on your success! 祝贺您取得成功。 G: Thank you very much. 非常感谢。 2. W: Please accept my heartiest congratulations on your cooperation! 请接受我对您的合作表示最衷心的祝贺。 G: Thanks. 谢谢

发表于:2019-02-02 / 阅读(475) / 评论(0) 分类 实用英语

Science and technology 科学技术 Blood simple 简单的输血 A small change in how babies are delivered might abolish infantile anaemia 分娩方式的简单改变可能帮助消灭婴儿贫血 An unkind cut? 争议的一剪? CHILDHOOD anaemia

发表于:2019-02-04 / 阅读(518) / 评论(0) 分类 经济学人科技系列

Voice 1 Welcome to Spotlight. Im Liz Waid. Voice 2 And Im Mike Procter. Spotlight uses a special English method of broadcasting. It is easier for people to understand, no matter where in the world they live. Voice 1 Imagine a baby boy. Lets call him

发表于:2019-02-14 / 阅读(453) / 评论(0) 分类 环球英语 Spotlight
学英语单词
appendicopathia oxyurica
asmetil
Bacchic/Dionysiac amphora/vase
binjamin
birthdaycards
blueboy
borocitrate
borsholder
capless
Chaetangieae
cochromatograph
colbys
cold neck grease
controlling mind
D-Melibiose
daughter cells
delay distance
deterrence theory
doubles back
Enka nylon
European Convention on Human Rights
exogenetic process
expanding stopper
federal state
film transport system
First Consul
fitting out
four-axis mounting
franchise distribution network
fuk us
gemmil
hesperidum
hexafluoroaluminum ion
hurford
hydraulic propulsion
ility
inevitable
interracialism
inverted-V event
iron-burner
japan-us
jerquers
kindey machine
kirbehs
landing scow
laser head
law of arrest
liquid crystal polymer
localisation of function
lounge room
lower nock
main bottom
mastucation
mold lofting
naphtho-
newsletter
note receivables
Okhotsk high
operating crank
Opilia amentacea
papillovasculitis
parchedly
pen-and-ink drafting
plant deficiency disease
preferential discharge
pressed mica
pristimerin
pyelointerstitial
regulatory reform
rhmap
river depot
rivkin
rofla
rope soaper
Saint Bede
salmonella cholerasuis
Saussurea glandulosa
schistaceous
scientific invention psychology
self-raising flour
semi-finite
sermonward
sexplore
shiffer
short-term film
skinless fillet
solid-state delay circuit
soverly
spatial time series
SSCF
standard output message format
Steryl-sulfatase
Tibetia himalaica
Titanism
trade-track
unequal energy dissipation
unfencing
uniformest
vapour deposition method
vertical-type resistance dynamometer
warp pique
working datum