1、…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
