noun [具体名词] 露齿笑
She put a hand on her hip, grinning derisively, while I seethed with rage. 她把一只手叉着腰，嘲弄地咧嘴而笑，而此时我已怒火中烧。
verb [vi. 不及物动词] 露齿而笑，咧嘴笑（grin的现在分词）
He was grinning from ear to ear. 他笑得合不拢嘴。
noun [专属名词] （Grinning）（美、英）格林宁（人名）
He just stood there, tonguetied and grinning sheepishly. 他只是张口结舌地站在那儿, 羞怯地笑着.
