grin例句

All at once, Mick's serious expression softened into a grin.
米克严肃的表情一下子变成了笑脸。

He had a grin on his face like a Cheshire Cat.
他咧着嘴笑呵呵的。

Bobby looked at her with a sheepish grin.
博比望着她腼腆地咧嘴一笑。