If this isn 't Susan's book that one must be hers.
假若这本书不是苏珊的，那末那本书就一定是她的了。
I must assure you that it wn 't happen again.
我必须向您确保，这种事情不会再次发生。
One eof these is that the T. A. must speak English well.
其中之一是助教的英语要讲得流利。 。
The head of S&T division must, first of all, be an expert in S&T management.
科技处长应该首先是位科技管理专家。
I must assure you that it wn "t happen again."
我必须向您确保，这种事情不会再次发生。
If we don? T start out now, we must risk missing the train.
如果我们现在不出发，就可能会赶不上火车。
Believe also must have your favorite cartoon character T-shirt!
相信也一定有你所喜欢的动漫人物T恤吧！
她一定是个模特，不是吗？
He must be ill, for he isn t here.
他今天没来，看来一定是生病了。
Don "t you see that we must pay higher cost in water processing?"
难道你没看到我们要花费大量的金钱来进行水处理。
We must make our world more and more beautiful, don 't you think so?
我们一定能制造更美丽的世界，难道你不想吗？
Failure doesn t mean you should give up, It does mean you must try harder.
失败并不代表你应该放弃，它只表明你要加倍努力。
I must have been one of the first 3000 because I got this free T-shirt.
我应该是前3000位，因为我得到了这件免费纪念T恤。
She can"t have been 29. She must have been 36."
她那时肯定不会是29岁，她一定36岁了。
He can "t have been reading. He must have been sleeping."
他那时肯定不是在看书，他准是在睡觉。
"T. G. I. F", every one must be very happy today .
每个人都很开心，因为今天是周五。
Look here, children, you must' t run around like this.
哎，孩子们，你们不可以这样子到处乱跑的！
Look here, children, you must' t run around like this.
哎，孩子们，你们不可以这样子到处乱跑的！
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