titter

1. V-I If someone titters, they give a short nervous laugh, especially when they are embarrassed about something. 窃笑

Mention sex therapy and most people will titter in embarrassment. 提到性疗法，许多人会尴尬地窃笑。

2. N-COUNT Titter is also a noun. 窃笑

Mollie gave an uneasy little titter. 莫莉不自在地微微窃笑了一下。

3. titteringN-UNCOUNT

There was nervous tittering in the studio audience. 演播室观众席中传来紧张的窃笑声。