17、 hellip; hellip;不得不 hellip; hellip; be +forced +to +doSince the examination is around the cor

　　be +forced +to +do

　　Since the examination is around the corner, I am forced to give up doing sports.

　　18、明顯地，

　　It is obvious that + 句子。

　　It is obvious that what a bad boy he is.

　　19、那就是 的原因(用途)。

　　That is the reason why

　　Sam is simple-minded. That is the reason why I don t like him.

　　20、過去 年來， 一直

　　For the past + 時間，某人/某物+現在完成時。

　　For the past two months, I have watched 50 movies.

　　21、 是值得的。

　　It pays to +do sth

　　It pays to be honest.

　　22、 不遺余力的

　　spare no effort to +do sth.

　　We should spare no effort to make our mother town beautiful

　　23、 與 密切相關。

　　sth be closely related to sth.

　　Taking exercise is closely related to health.