tittering

1. VERB (尤指窘迫时)干笑，傻笑，窃笑，哧哧地笑
   If someone titters, they give a short nervous laugh, especially when they are embarrassed about something.
   1. Mention sex therapy and most people will titter in embarrassment.
      提及性治疗，大多数人会尴尬地偷笑。
   2. Titter is also a noun.
      
   3. Mollie gave an uneasy little titter.
      莫莉不自在地轻声干笑了一下。

1. 'I couldn't really help it when toothers did,'apologized Tess, still tittering.
   “大家都笑，我也实在忍不住了，”苔丝向她道歉说，嘴里还在嗤嗤地笑着。
2. Just then, Khruschev noticed that all the Indonesians present were staring at him, whispering and tittering.
   这时，赫鲁晓夫发现周围的人露出微笑并窃窃私语。
3. Lin Pei-shah had gone over and sat down by the window and was tittering behind her hand.
   林佩珊则移坐到靠前面玻璃窗的屋角，吃吃地掩着嘴偷笑。
4. He sponged out lines and remade them; but he only distorted them more than ever, and the tittering was more pronounced.
   他擦去一些线，然后又画上，结果画得比原来的还差，大家更加肆无忌惮地笑话他。
5. Their likes: their breaths, too, sweetened with tea and jam, their bracelets tittering in the struggle.
   跟他们类似的人，她们的呼吸也给红茶、果酱弄得甜丝丝的，扭动时，她们腕上的镯子在窃笑着。

adj

1. being or sounding of nervous or suppressed laughter

   Synonym:    thoriated