snigger

What are you sniggering at?

你偷偷笑什么呢？

牛津词典

Suddenly, three schoolkids sitting near me started sniggering...

3 个坐在我附近的学童突然偷偷地笑了起来。

How can I forget, with people sniggering behind my back?...

我怎么会忘记呢？人们一直在我背后偷偷地笑话我。

Here the unfeeling Toad a snigger, and then pulled himself and tried to look particularly solemn.

听到这里,没心肝的蟾蜍居然偷偷地噗嗤笑了出来,跟着又敛容正色,做出特别庄重严肃的样子.

期刊摘选

The tourists snigger at the locals' outdated ways and dress.

游客们偷偷地取笑当地人落伍的做法和衣着。

柯林斯例句