grin是什么意思 n. 露齿笑v. 露齿而笑 v. to draw back the lips and reveal the teeth, in a smile, grimace, or snarl grin的用法和例句: 1. She's grinning that stupid grin, believing everything they're saying. 她咧着嘴傻笑 相信他们说的每一句话 2. But the... It...