修复酶

Astronauts at the International Space Station have overcome initial fears and are preparing to perform the first spacewalk beneath the shuttle to repair two dangling pieces of material. The material, used to fill gaps between tiles, is sticking out b

发表于:2018-12-05 / 阅读(39) / 评论(0) 分类 英语听力文摘 English Digest

[00:22.13]Xiao Hu:Can you help me,Dick? [00:35.27]Dick:Yes.What is it? [00:37.88]Xiao Hu:I'm going to repair the window. It's broken. [00:42.71]Dick:What can I do for you? [00:45.14]Xiao Hu:Hold the ladder for me,please [00:48.35]Dick:OK.But be caref

发表于:2019-01-09 / 阅读(121) / 评论(0) 分类 小学英语北京版

Lesson 64: [00:03.58]What Do You Know?Have You Seen These Words? [00:09.35]bag bit,a bit of I have a bit of plastic.It's a white bit. [00:18.00]It's small.Look!I can hold it in my hand. [00:23.95]least,less [00:27.43]There are three bags of garbage.I

发表于:2019-01-09 / 阅读(151) / 评论(0) 分类 河北加拿大版初中英语

[00:53.89]Lesson 25 [01:04.47]What are Bob and Tang Ling going to do with the wall? [01:11.52]They are going to paint the wall white put up a notice saying Keep off, [01:19.60]and drill a hole for the electric wires. [01:25.55]Language points [01:30.

发表于:2019-01-10 / 阅读(184) / 评论(0) 分类 高中英语人教版高三

By Margaret Besheer Washington 03 November 2007 NASA astronauts have successfully repaired a damaged solar wing at the International Space Station. The operation was completed Saturday, after being postponed twice so engineers could further study how

发表于:2019-01-31 / 阅读(57) / 评论(0) 分类 VOA常速英语2007年(十一月)

A man took a pair of shoes to a shoe repair shop and said to the shoemaker, I'd like you to repair these shoes for me, please.Certainly, sir, the shoemaker said. When will they be ready? the man asked. I'm a bit busy, but they'll be ready for you on

发表于:2019-02-18 / 阅读(43) / 评论(0) 分类 趣味英语
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