http://forum.wordreference.com/showthread.php?t=2377923&langid=22 在这个论坛里,有关于fail to do和 fail in doing 的争论。
争议主要在fail in doing 上。 大家给了一个例句 是: She failed in giving him a daughter.
对于这个句子大家有两种理解
1. She gave him a daughter, but that is not what other's want. So, she failed.
2. She didn't give him a daughter.