fumbling

I fumbled with the lock.

我笨手笨脚地想把锁打开。

If Wilson hadn't fumbled that catch, we might have won the match.

如果威尔逊没有漏掉那个球，这场比赛我们可能就会赢了。

I was fumbling for the right word.

我正在搜肠刮肚，想找一个合适的词。