impossible

1.下面两句都不可说：

• This is impossible to be done.
• We are impossible to do this.

第一句该改作It is impossible to do this。第二句该改作It is impossible for us to do this。This is impossible to do和The question is impossible to answer和He is impossible to live with等句现在比以前普通。

2.impossible的后面有时接of和表示动作的名词。例如：This is impossible of attainment. 和The mountain seems to be impossible of conquest.