好词典
grin
UK //ɡrɪn//US //ɡrɪn//
词源
源自古英语grinnian，意为'露齿而笑'，与古高地德语grinnan同源。
verb
❶ 咧嘴笑，通常指露出牙齿的笑容，常用来表达开心、得意或调皮的情绪。
“He grinned at me when I told him the good news.”
（当我告诉他这个好消息时，他冲我咧嘴笑了。）
“She couldn't help grinning when she saw the puppy playing.”
（看到小狗玩耍时，她忍不住咧嘴笑了。）
同义词:smile, smirk, beam
noun
❶ 咧嘴笑的表情，通常带有牙齿露出，可能是开心、得意或恶作剧的表现。
“He had a big grin on his face after the surprise party.”
（惊喜派对后，他脸上挂着大大的笑容。）
“The child's grin showed his missing front teeth.”
（孩子的笑容露出了他缺失的门牙。）
同义词:smile, smirk, beam
常见短语
grin and bear it — 指在困难或不愉快的情况下强颜欢笑，默默忍受。
“Even though the work was hard, he decided to grin and bear it.”
（尽管工作很辛苦，他还是决定咬牙坚持下去。）
grin from ear to ear — 形容笑得非常开心，笑容从一边耳朵延伸到另一边耳朵。
“When she got the promotion, she was grinning from ear to ear.”
（当她获得晋升时，她笑得合不拢嘴。）