fail
fail to的同义替换：not succeed in doing sth；不成功，未能
fail to：v.未能;使…失望
例句：But we did not succeed in our objective.
但是我们的目的没有达到。
Try as he might, he did not succeed in it.
他虽千方百计，但仍没有成功。
I did not succeed in my first lecture.
我第一次讲课不成功。
Yet the Japanese did not succeed in annihilating the forces opposing them.
尽管如此，日本军队仍然消灭不了抗日武装。
