titters
v．轻笑，窃笑：尤指因为紧张、羞怯或不适当的原因而发出的轻声笑。
例句
But what do titters communicate?
哧哧的笑声传达的是什么呢？
That's enough of your titters, girls!
姑娘们，别再傻笑了！
His slip of tongue brought titters from the crowd.
他的口误引起了人群的哄堂大笑。
