…是不可能的; 无法…There is no Ving= There is no way of Ving。

= There is no possibility of Ving。

= It is impossible to V。

= It is out of the question to V。

= No one can V。

= We cannot V。

2、我深信…I am greatly convinced (that)子句= I am greatly assured (that)子句3、…是很容易证明的。

It can be easily proved (that)子句4、就我的看法?…;我认为…In my opinion，…= To my mind，…。

= As far as I am concerned，…= I am of the opinion that子句。