不透水层

watertight layer的用法和样例：

例句

Landfills without the benefit of a naturally impermeable layer use plastic liners and imported clay.没有受益于天然不透水层的垃圾填埋场使用塑料衬管和进口粘土。
A mathematical model for groundwater pollution in a leaky aquifer system,which involves the adsorption of semipervious layer,is presented.提出了一个越流含水层系统考虑弱透水层吸附作用的地下水污染数学模型。

新概念英语第三册lesson 10 The loss of the Titanic

Lesson 10: The loss of the Titanic泰坦尼克号的沉没 Listen to the tape then answer the question below. 听录音，然后回答以下问题。 What would have happened if only two of the sixteen water-tight compartments had been flooded? The gr

发表于:2018-11-27 / 阅读(844) / 评论(0)

新概念英语第三册

历年考研英语阅读理解mp3(98-3)

[00:00.00]在线英语听力室( www.tingroom.com )友情制作 [00:05.80]1998 Passage3 [00:08.62]Science has long had an uneasy relationship [00:11.94]with other aspects of culture. [00:14.56]Think of Gallileo's 17th-century trial for his rebelling belief [00

发表于:2018-12-01 / 阅读(622) / 评论(0)

历年考研英语阅读理解

大学英语六级词汇 w

wallet n.钱包 ward n.病房；牢房；受监护人；行政区 wardrobe n.衣橱；(个人、剧团的)全部服装 warehouse n.仓库，库房 warfare n.战争，战事；竞争，斗争 warrant n

发表于:2018-12-01 / 阅读(278) / 评论(0)

闭着眼睛飘单词六级词汇

大学英语六级词汇(拼读版) 027

[00:00.00]wardrobe [00:06.31]wardrobe [00:08.22]n.衣橱；(个人、剧团的)全部服装 [00:15.68]wardrobe [00:17.59]warehouse [00:24.71]warehouse [00:26.75]n.仓库，库房 [00:34.92]warehouse [00:36.96]warfare [00:42.96]warfare [00:45.08]n.战争

发表于:2018-12-01 / 阅读(363) / 评论(0)

大学英语六级词汇(拼读版)

上海牛津初中英语九年级下--CHAPTER 1

CHAPTER ONE [00:44.25]READING [00:45.74]Page 2 and 3 [00:48.43]THE YOUNG GREEN CONSUMER GUIDE [00:51.51]Review by Tony Ma [00:54.62]This book says that our world is in danger [00:59.32]It is vital that we do something to save the earth [01:04.21]Firs

发表于:2018-12-01 / 阅读(701) / 评论(0)

上海牛津初中英语九年级

英语听力：新概念英语第三册单词MP3 Lesson 10

Lesson 10 1.a crew n.(人数达到......的)全体人员, (工作)队 2.abandon v.抛弃 3.collision n.碰撞 4.colossal adj.庞大的 5.compartment n.(轮船的)密封舱 6.faint adj.微弱的 7.float v.漂浮,飘浮 8.flood v.充满水 9.horror n.恐

发表于:2018-12-02 / 阅读(277) / 评论(0)

新概念英语第三册单词MP3

听一分钟英文：Ozone Layer-臭氧层

I first heard about the ozone layer about twenty years ago. I was still in school. I thought it was interesting, but I didnt take it seriously. It was a bit like science fiction, I mean, how could there be a giant hole in the atmosphere? Over the yea

发表于:2018-12-04 / 阅读(320) / 评论(0)

听一分钟英文-O

旅游英语口语就该这么说:第66期乘飞机机上服务

May I put my overcoat up there in the overhead compartment? 我可以把大衣放进上面的置物箱吗？ Yes, but be sure to take it with you when leaving the aircraft. 可以，但下机时请不要忘记带走。 I would like a blanket. 我想要

发表于:2018-12-27 / 阅读(204) / 评论(0)

旅游英语口语就该这么说

英语课程计划-the Preservation of the Ozone Layer

There is a special day to recognize the importance of the ozone layer. In 1995, the United Nations General Assembly decided September 16th is the International Day for the Preservation of the Ozone Layer. This is the date on which countries signed th

发表于:2018-12-29 / 阅读(385) / 评论(0)

英语课程学习计划和讲义

漫画搞定六级词汇(音频+文本) 第123期

图片1 waterproof adj. 防水的，不透水的例句：The corporation will come up with a new technique for waterproofing walls. 该公司将推出防止墙壁渗水的新技术。 watertight adj. 不漏水的，水密的例句：As soon as the

发表于:2018-12-30 / 阅读(251) / 评论(0)

漫画搞定六级词汇（文本+音频）

美语中的感叹词用法

美语中，一些感叹词的意义跟字典上的解释不尽相同，要在日常生活中才能体会到。让我们看看以下几个例子： Oh的字典意义是嗬；哦；哎呀，表示惊讶、的恐惧等。但将这个词连起来用，却

发表于:2019-01-09 / 阅读(319) / 评论(0)

实用英语

职业技术英语口语第85期:环境问题空气污染

Air pollution 空气污染 A: I've heard of ground-level ozone but can you explain what it is exactly? A:我听说近地面臭氧，但是你能确切解释一下是什么吗？ B:Yes, it's one of the main air pollutants. Factories don't emit it dire

发表于:2019-01-14 / 阅读(286) / 评论(0)

职业技术英语口语

购物英语对话-Exchanging a DVD Player(1)

A: May I exchange this DVD player? B: Certainly. Do you have your receipt? A: Here you are. B: Now, why do you want to exchange it? A: It won't play a DVD. B: I'm sorry. I'll get you a new player. A: At first, I thought it was me. B: Okay, here's a n

发表于:2019-01-20 / 阅读(286) / 评论(0)

购物英语对话

购物英语对话-Exchanging a DVD Player(2)

A: I'd like to exchange this DVD player. B: Of course. Do you have your receipt? A: Here it is. B: Now, could you tell me why you want a different one? A: It refuses to play my DVDs. B: That's strange. Let me get you a new one. A: All my friends trie

发表于:2019-01-20 / 阅读(256) / 评论(0)

购物英语对话

纯正英语一分钟-ozone layer

发表于:2019-01-21 / 阅读(340) / 评论(0)

纯正英语一分钟

PBS高端访谈:南极臭氧层空洞有所缩小

HARI SREENIVASAN, PBS NEWSHOUR WEEKEND ANCHOR: Scientists studying climate change in Antarctica reported this week that the hole in the protected ozone layer of the earth's atmosphere has shrunk. The discovery of the hole in the mid-1980s led to a wo

发表于:2019-01-27 / 阅读(296) / 评论(0)

PBS访谈环境系列

常用英语口语：寄印刷品

M: Excuse me! W: May I help you? M: Yes, I'd like to send this book to France. W: Let me weight it first. That'll be 14 dollars. M: Can it go in an envelop? W: Of course, it's 4 dollars now. M: Do I need stamps? W: No, you don't. We use computers now

发表于:2019-02-21 / 阅读(262) / 评论(0)

英语口语

英语听书《海底两万里》第174期第12章一切都用电(7)

It's marvelous, I replied, and I truly see, captain, how right you are to use this force; it's sure to take the place of wind, water, and steam. 真了不得。我答，船长，我很明白您使用这种原动力的理由，因为这原动力是可以

发表于:2019-02-25 / 阅读(388) / 评论(0)

《海底两万里》中英双语有声读物

你不来我不敢老去

你不来我不敢老去 Actually, I'm old That I've to let the small tree in front of the door for me shed the leaves off I'm too old as to shell off a layer of earth And another layer of earth once more Seeing these layers of earth I know that goi

发表于:2019-02-25 / 阅读(260) / 评论(0)

阅读空间

雅思范文：能源危机的解决

此题感谢lgc，是6月28日雅思写作大题目。关于能源危机的解决。此文思路清晰，结构除了建议部分稍显单薄，还是十分合理的，最关键的是本文的词汇功力，可以看出作者应该按照我上课的要

发表于:2019-02-26 / 阅读(363) / 评论(0)

雅思英语

最新学习文章

热门学习文章

热门标签

英语听力 VOA标准英语 VOA 英语歌曲口语听力提高听力材料听力教程英语学习 NPR 英语口语 VOA慢速英语美国国家电台儿童英语 VOA英语小学英语 cnn VOA常速英语标准英语英文歌曲听电影学英语英语单词英文电影慢速英语 CRI 美联社新闻美国有线新闻加州分级澳洲新闻流行歌曲常速英语 ABC新闻快递疯狂英语英语读物听力棚车少年经济学人英语词汇商务英语 VOA双语新闻 BBC 中国电台大学英语 Treasures 加州语文 BBC英语英语听力网站 VOA英语教学词汇万花筒 SSS VOA英语听力 AP 新概念分级英语英语广播听力精选英语播客英文绘本 TED演讲赖世雄英语MP3 CCTV9英语新闻 lesson 英语新闻初中英语学英语英语语法历史上的今天英文广播剧英语游戏原版英语小说英语有声读物书虫英语牛津英语读物访谈录新闻一分钟考研英语英语每日在线听新闻 Us 新概念英语地道英语单词第二册自然百科高中英语 sports 实用英语 MP3听力辛沛沛 ESL英语第一册英语每日一句 unit 新东方 GRE 每日一词 BBC听力

学英语单词

a-track

acquired lymphangioma