苗绳倒置

NPR 美国国家电台 2014-09-24

The Pentagon says the US and coalition partners are carrying out air strikes against Islamic state extremist ISIS in Syria. A new front of US operation against the militants. The strikes are sent on Raka where ISISs headquarters are. Canadian border

发表于:2018-12-02 / 阅读(49) / 评论(0)

2014年NPR美国国家公共电台9月

数学英语 40 How to Divide Fractions

by Jason Marshall A few months ago we talked about how to multiply fractions. Now that were comfortable doing this and weve talked about a few applications of multiplying fractions such as how to convert units and how to estimate how fast someone is

发表于:2018-12-07 / 阅读(47) / 评论(0)

数学英语

TED演讲:树木之间如何交流(8)

You see, like all networks, mycorrhizal networks have nodes and links. 你们看，就像所有的网络一样，真菌的网络中也有节点和链接。 We made this map by examining the short sequences of DNA of every tree and every fungal indivi

发表于:2019-01-18 / 阅读(47) / 评论(0)

TED演讲科学篇

鲜为人知的八个科学常识误区

Animals can predict natural disasters 动物能够预知自然灾害 There is no evidence that animals possess a mysterious sixth-sense allowing them to predict natural disasters. Their keen senses of smell, hearing, and sharp instincts alone are eno

发表于:2019-02-01 / 阅读(273) / 评论(0)

实用英语

Arbor Day（植树节）

In many countries it has long been the tradition to hold an annual tree or forest festival. The origin of such celebrations dates back to antiquity and is in the dawn of religious feeling and awe for what trees represented. However, Arbor Day, as it

发表于:2019-02-04 / 阅读(84) / 评论(0)

阅读空间

经济学人178:教育心理学现在你要知道

Educational psychology 教育心理学 Now you know 现在，你要知道 When should you teach children, and when should you let them explore? 什么时候应该告诫孩子，和什么时候应该让孩子自己摸索？ It is one of the oldest deb

发表于:2019-02-16 / 阅读(34) / 评论(0)

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学英语单词

-altering

alkalinity adjustment

ambiguous grammer

asantes

astronomic theodolite