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。
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。
tittering N-UNCOUNT
There was nervous tittering in the studio audience.
演播室观众席中传来紧张的窃笑声。
There was a time when the idea of "Hamburger U, " McDonald's training facility, used to elicit titters, but to Skinner, who didn't graduate from college or earn an MBA, management training is no joke.
“汉堡大学”（Hamburger U，麦当劳的培训机构）的理念曾经一度遭人耻笑，人们并不把它放在眼里，但对于斯金纳这种既没有大学文凭，也没有MBA学位的人而言，管理培训绝非儿戏。
That's enough of your titters, girls!
姑娘们，别再傻笑了！
But what do titters communicate?
哧哧的笑声传达的是什么呢？
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