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4. Apparently

当你听说了某件事而不是你自己确定这件事是真的的时候，你可以“apparently”来表示这件事是事实。

e.g. Apparently， she resigned because she had an argument with her boss.

例句：显然，她辞职是因为和老板吵了一架。

e.g. There is， apparently， going to be an announcement about the new CEO tomorrow.　　例句：显然，明天就会有新总裁的通知了。

5. I imagine / suppose / guess

These are used when you think something is probably true， but you can't be sure. “Guess”is more frequently used in American English， although you can hear it in British English， too. “Suppose” is more characteristic of British English and is often used in the negative.

这些词可以用在当你认为某事可能是真的，但又不确定的时候。“guess”更多地出现在美式英语中，尽管也有英国人会用。但是“suppose”是更加地道的英式英语，而且经常用在否定句中。

e.g. I imagine they've already left for the airport.

例句：我认为他们已经离开机场了。

e.g. I suppose she must be delighted about getting the job.

例句：我认为她得到这份工作一定很开心。

e.g. I don't suppose you'd consider staying for another week?

例句：我不认为你会再待一个星期。

e.g. I guess he will want to meet all the team members before the conference.

例句：我猜他想在会议前和团队成员见面。

6. To the best of my knowledge

当你认为某事是真的，但又不确定的时候可以用这句话。

e.g. To the best of my knowledge， no similar book has been published.

例句：就我看来，还没有类似的书出版过。

7. Not to my knowledge　　当你认为某事不是真的，但又不确定的时候可以用这句话。

e.g. "Has the report been sent yet?" "Not to my knowledge."

例句：“报告交上去了吗?”“我觉得没有吧。”

延伸阅读：

托福口语考场经验

托福口语：数字使用技巧

托福口语高分法则你做到了多少

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