v.露齿而笑(grin的变形词);
例句:
Michael grinned wickedly.
迈克尔坏坏地咧嘴笑了。
I grinned at him in unashamed delight.
我高兴地朝他笑了笑,一点也不觉得难为情。
He grinned and shuffled his feet.
他咧嘴笑了,脚动来动去。