单词：switches off
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13 Dogs People often say that a dog is man's best friend. Over thousands of years, man has taught his dogs to do many kinds of work besides guarding the home. For example, sheepdogs are famous for their ability to control a flock of hundreds of sheep
背诵为王第一册
[00:02.04]我不懂怎样开水洗澡。 [00:04.08]Useful Expressions [00:04.98]常用语句 [00:05.88]1.Hot water doesn't come out. [00:08.46]没有热出来。 [00:11.05]2.Would you be kind enough to tell me how to operate it? [00:14.96]请你告诉我
海外求助英语会话
After we had seen how relatively easy it was to change the switches in mouse embryos, we thought that perhaps the same could be true of human embryos. In IVF, you also have the embryo for a brief peri
基因外遗传现象
From NPR news in Washington, I am Jack Spear.The federal government has heed General Motors with a 35-million-dollar fine for violating safety laws. The penalty was imposed of GM handling the recalled cars with faulty egnition switches. The fact has
2014年NPR美国国家公共电台5月
插座、插头和其它连接物(电器连接) Sockets， plugs and other contacts [electric connections] 插头、插座及其他接触器(电接头) Plugs， sockets and other contacts [electric connections] 表面覆有带电导体的玻璃 Glass
英文语法词汇
By Peter Heinlein United Nations 27 September 2006 The annual U.N. General Assembly debate has ended in New York, clearing the way for the final stage of the process of selecting a new secretary-general. The field of candidates for the job of diplom
2006年VOA标准英语（九月）
South Sudan has issued a new argument to support its claim on a major oil field given to the North as part of the Abyei ruling last week at The Hague. Disputing the North's possession of the oil field, the South says the prized land is still part of
VOA标准英语2009年(七月)
Wanxiang Group, a major automotive component manufacturer in Zhejiang Province, is transitioning into an international clean energy company. Founded in 1969, the Wanxiang Group in east China's Zhejiang Province has successfully transformed itself fro
2018CRI中国国际广播电台