can't help laughing; break into laughter; chuckle to oneself; can't suppress one's laugh; be unable to swallow a laugh; laugh involuntarily; unable to stifle a laugh
It was brilliant , deep , philosophical , and deliciously touched with laughter 这论文精彩深刻富于哲理，妙语解颐，能令人哑然失笑。
2.
I stood , dumbfounded , wondering if i should be the one to answer this child ' s first question about the birds and the bees 我站起来，哑然失笑，我怀疑自己应不应该是回答这个孩子的第一个关于性的问题的人。
