3. ...have no idea about what to do. ……不知道该做什么。 4. ...have trouble doing... ……做……有困难。 5. It is difficult to do... 做……是困难的。 语法点击 一、祈使句: ...
1. Since 1869, when I was a mere boy of 11, this museum has been a shining beacon to our great city. Tonight we'll expand our horizons even further, to the Sun, the Moon, a...
––– I have been waiting here for about half an hour. 你在这儿等多久了? 我在这儿大概等了半个小时。 Professor Wang has been doing the research on English literature for more than 30 years. He has written more than 10 books, some of which have been...
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