be to do ① 表示“按计划、安排即将发生某事或打算做某事”。 例:She is to be seen in the lab>星期一你准会在实验室见到她。 ② 该做或不该做的事情(语气上接近于should, must, ought to, have to),表示一种命令、规劝性语气。 例:You are to go to bed and keep q...
this is not the end. It's not even the beginning of the end. It is only the end of the beginning. In other words, weramped up. You've done a great job. But we have to transition now from what has essentially been a make-it-up-as-you-go-along...
There is little that can be done to stop population ageing, so the world will have to live with it. But some of the consequences can be alleviated. Many experts now believe that given the right policies, the effects, though grave, need not be catas...
1.should have done =ought to have done 本应该做而没做 2.would have done = 本来就会去做某事而没做 3.could have done = 本可以做某事而没做 4.might have done 本可以做而没做 例:They ought to have apologized. 他们本该道歉的。 5. must have done sth 一定做...
So I would also sayit's premature to discuss pausing. It'snot something that we're thinking about. That's reallynot a conversation to be had now. Wehave a ways to go. The l...
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