单词:
单词: 相关文章
Cells cannot remain alive outside certain limits of temperature and much narrower limits mark the boundaries of effective functioning. Enzyme systems of mammals and birds are most efficient only withi
[00:00.00] MODULE 3 STATIONERY [00:05.47]Unit 7 Where's My pencil? [00:11.63]VOCABULARY [00:14.87]where where's=where is pencil it [00:21.40]什么地方;哪里 是在哪里 铅笔 它 [00:27.94]on desk no bed [00:32.96]在...的上面 书桌 不;不是
[00:00.00] MODULE 3 STATIONERY [00:04.99]UNIT 7 Where is My Pencil? [00:10.63]Words and Expressions [00:14.79]Where [00:16.76]什么地方 [00:18.73]where's = where is [00:22.36]...是在什么地方 [00:25.99]pencil [00:27.98]铅笔 [00:29.96]it [00
[00:01.08]Happy birthday,Lingling.生日快乐,玲玲。 [00:03.62]Here's your gift.这是你的礼物。 [00:05.41]Oh,you remembered!哦,你记得! [00:07.70]What a surprise!真是个惊喜啊! [00:09.62]You can open it!你可以打开它! [00:10.
[00:00.00]Hey,boys!嘿,男孩们! [00:02.02]Hi,Betty.嗨,贝蒂。 [00:03.39]Hi,Lingling.嗨,玲玲。 [00:04.69]Where are you going?你要去哪里? [00:06.11]We're going to the park to skate.我们去公园滑冰。 [00:08.01]There's thick ice
Some bacteria have adapted to super cold environments for millions of years. And scientists have isolated some of the essential genes that allow bacteria to tolerate their harsh living conditionsbecause these same genes might help in the creation of