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[00:41.48]must 应该,必须 [00:48.56]You must stand in line! [00:58.20]You mustn't sit on the desk. [01:07.21]You must get up and get ready for school. [01:17.45]You mustn't eat anything until you see the doctor. [02:05.18]when,before,after引导的
一个英语单词可分为三部分:前缀(prefix)词根(root)后缀(suffix)。位于词根前面的部分就是前缀。前缀,可以改变单词的意思。 contra- 表示反对,相反 contrary = contra + ry adj. 相反的 contra
This post is a little different from my usual ones, but I thought you might enjoy these puzzles as much as I did. Before you begin you may want to go over the vocabulary in the list below. Also, please try these without writing anything down or looki
DEVELOPMENT REPORT - Studies Say New Rotavirus Vaccines Are Safe and EffectiveBy Jill Moss Broadcast: Monday, January 16, 2006 I'm Steve Ember with the VOA Special English Development Report. Studies
DEVELOPMENT REPORT - How Do Vaccines Reach the Developing World?By Jill Moss Broadcast: Monday, March 06, 2006 I'm Steve Ember with the VOA Special English Development Report. Guatamalan baby infected