as we know...
in fact./as a matter of fact...
there is no doubt that.
it is believed that...
it is said /reported that.
where there is a will,there is a way.(名言)
I will never give up.
They set good examples for us.
so that...
too...to...
not only.but also...
I can learn a lot from him.
We are very proud of him.
there be
被动语态
各种从句
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