时间:2019-01-10 作者:英语课 分类:与美国小学生一起学英文第2册


英语课

   Human Teeth 人的牙齿


  Teeth are the hardest thing in the human body. 牙齿是人体中最坚固的东西。
  They are not made of bone. 它们不是由骨骼构成的。
  They are made of enamel 1, gum and so on. 而是由牙釉质,牙龈等构成的。
  People use teeth when they eat something or tear something. 人们用牙齿吃东西或撕东西。
  How many teeth do people have?  人有多少颗牙呢?
  When they are young, they have 20 teeth. 小时候,人有20颗牙。
  And when they get older, they have 32 teeth all together. 长大后,人总共有32颗牙。

n.珐琅,搪瓷,瓷釉;(牙齿的)珐琅质
  • I chipped the enamel on my front tooth when I fell over.我跌倒时门牙的珐琅质碰碎了。
  • He collected coloured enamel bowls from Yugoslavia.他藏有来自南斯拉夫的彩色搪瓷碗。
标签: 小学英语
学英语单词
Abbiategrasso
adjustment of incomplete sets of observation
Allium maackii
apolepsy
automatic chucking machine
backwoods
balance point detector
binocles
botana
bromances
by fair means or foul
cable properties
calcaneo-astragalar
CCASS
chemocarcinogenesis
chylous
citatory
colpopoiesis
complete transaction
compressed pipe
conic helicoid
coordinate convulsion
coordination exercise
cross-compound double flow
cutting life
dataway
deck base
degree of stability
dental root cyste
electroconvulsive
elliptical scan
eumenol
exchange draft
fabrication process
favourable prognosis
felt dust packing
flightism
fruited
furrow damming
fuzzily
gackle
glucose enzyme transducer
gravity damper
Grevenmacher, Dist.de
haemngioblastoma
hardanger cloth
heat pump type air conditioner
hog-tie
Hopewell Is.
housing-finance
Hydroretrocortisone
Japan Management Association
Letter of Affirmation of Ship Auction
loop signaling
loss from devaluation
machine inactivity card
meeting in camera
mesonephroid carcinoma of ovary
message transfer part
methylophippogonone
microsecond impulse
mutual inhabitation
myocilin
nolhe
nwmp
Nymphaeaceae
Olsen microphone
open-works
peanut smuggler
pogonatum camusii
pointclasses
pondicherry
post-vaccinal encephalomyelitis
preclose
progress chart of loading/discharging
psychogalvonometer
pyroguaiacic
Rabbinisms
range scanning
ring bar
rise to fame
Salam-Weinberg theory
sales conditions
screened indicator
shape board
software readability
spasmolytol
spider frame
static error
stock volume
stowage of container
teletypewriter control set
to be responsible for something
told someone off
tractus geniculocorticalis (cochlearis)
trenching bucket
unbracketing
unknowable
unshelving
wcau-tv
Woodworth Seamount
y'ins