vi.
(尤指因高兴、愉快、满足等)咧嘴而笑，露齿而笑，龇牙咧嘴：
The boy grinned from ear to ear when his mother gave him the apple.
当小男孩的母亲给他苹果时，他咧嘴大笑。
(人痛苦、狗狂吠时)咧嘴，龇牙：
A snarling dog
grins.
狂吠的狗咧嘴龇牙。
(一层涂料透过其上面一层)显露出来(常与through 连用)；(织物)有稀路织疵
vt.
露齿而笑地表示：
露齿而笑地表示：
He grinned his appro