全国大众英语测验语法——stopdoing/todo stop to do防止,间断做某事后往做另一件事。 stop doing防止做某事。 They stop to smoke a cigarette.他们停上去,抽了根烟。 I must stop smoking.我必需戒... /
2010-06-08 / 查看
241 次
完形填空考前强化练习四(附谜底详解) The rocket engine, with its steady roar like that of a wateITll or a thunderstorm, is an impressive symbol of the new space age.Rocket engines have 1 powerful e... /
2010-06-08 / 查看
5 次