[no obj.]smile broadly, especially in an unrestrained manner and with the mouth open 咧嘴笑,露齿而笑 Dennis appeared, grinning cheerfully. 丹尼斯出现了,高兴地咧着嘴笑。 ■grimace or appear to grimace grotesquely in a way that reveals the teeth 龇牙咧嘴 [as adj. grinning]a grinning skull. 龇着牙的头骨。
noun
a broad smile 咧着嘴的笑,露齿的笑 ‘OK’, he said with a grin. ‘好吧’,他咧着嘴笑着说。
常用词组 grin and bear it
suffer pain or misfortune in a stoical manner 苦笑忍受;逆来顺受
派生 grinner noun grinningly adverb 语源
Old English grennian 'bare the teeth in pain or anger', of Germanic origin; probably related to groan