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This is Scientific American's 60-Second Science, I am Cynthia Graber. This'll just take a minute. Whales and dolphins were molded by evolution to glide through water. Weve been trying to create streamlined designs ourselves for structures such as win

发表于:2019-01-08 / 阅读(47) / 评论(0) 分类 Scientific American(七)月

Double, Double play pause stop mute unmute max volume 00:0005:28repeat repeat off Update Required To play the media you will need to either update your browser to a recent version or update your Flash plugin. OPHIRA EISENBERG, HOST: Now it's time to

发表于:2019-01-17 / 阅读(64) / 评论(0) 分类 2016年NPR美国国家公共电台10月

Cleaning the oven is the most hated chore in UK households, a new study has revealed. 一项新调查发现,清理烤箱是英国人最讨厌干的家务活。 Ironing is the second most disliked task (23%), followed closely by changing the bedshee

发表于:2019-02-01 / 阅读(30) / 评论(0) 分类 实用英语

little mermaid的故事The following is an annotated version of the fairy tale. I recommend reading the entire story before exploring the annotations, especially if you have not read the tale recently. FAR out in the ocean, where the water is as blue

发表于:2019-02-03 / 阅读(58) / 评论(0) 分类 英美文化

RIO DE JANEIRO, April 4 (Xinhua) -- Fellipe Bastos scored two goals as Vasco de Gama defeated Alianza Lima 2-1 in their Copa Libertadores match at Lima's Alejandro Villanueva Stadium on Tuesday. The result lifts Vasco to the top of their group with 1

发表于:2019-02-03 / 阅读(69) / 评论(0) 分类 英语新闻

发音: 美国英语语音 consonants 辅音 vowels 元音 第一 按发音方法分类(辅音): manner (发音)方式 1.stop 爆破音--是指发音器官在口腔中形成阻碍,然后气流冲破阻碍而发出的音。 2.fricative 摩擦音--由发

发表于:2019-02-26 / 阅读(52) / 评论(0) 分类 英语口语