他那蟑螂般的胡子在偷偷地笑。

His cockroach moustache seems to snicker.

youdao

听后，我赶紧喝起了热水，表哥在一边偷偷地笑我。

SoI hurried to drink hot water. The cousin laughed at me secretly in one side.

youdao

当老师在黑板前讲解数学题的时候，我们都偷偷地笑，因为他裤子后面有个裂缝。

We were laughing in our sleeves at the teacher when he was up at the blackboard explaining the math problem. He had a rip in the back of his pants.

youdao