1
have a grin on one's face
描述某人脸上带着笑容的状态。
She had a huge grin on her face.
她脸上挂着灿烂的笑容。
露齿笑；咧嘴笑
先理解核心含义，再看它在真实句子里的用法。
露齿笑；咧嘴笑
a smile in which the teeth are shown
She had a huge grin on her face.
她脸上挂着灿烂的笑容。
露齿而笑
A smile in which the lips are parted to reveal the teeth.
She couldn't hide the grin on her face when she heard the news.
她听到这个消息时，脸上藏不住露齿的笑容。
The boy gave a wide grin before running off to play.
那个男孩咧嘴一笑，然后跑出去玩。
I saw a satisfied grin on the chef's face as the dish was served.
菜端上来时，我看到厨师脸上露出满意的笑容。
描述某人脸上带着笑容的状态。
She had a huge grin on her face.
她脸上挂着灿烂的笑容。
表示向某人露出笑容的动作。
He gave me a friendly grin.
他对我友好地咧嘴一笑。
修饰动作，表示伴随着笑容。
He accepted the prize with a grin.
他咧嘴笑着接受了奖品。
描述笑容逐渐出现的动态过程。
A grin spread across his face.
笑容在他脸上绽开。
Not this
She grinned at me politely.
Use this
She smiled at me politely.
grin 指咧嘴露齿的笑，通常表达愉快或嘲讽；而礼貌的微笑通常是不露齿的，应使用 smile。
Not this
He grined at the camera.
Use this
He grinned at the camera.
grin 的过去式是 grinned，双写 n 再加 -ed，不能只加 -d。
Not this
He grinned to me when I entered.
Use this
He grinned at me when I entered.
表示‘对某人笑’时，grin 后应接介词 at，而不是 to。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
大大的露齿笑
He greeted me with a big grin.
他带着大大的露齿笑迎接我。
咧嘴笑
She gave a wide grin when she saw the surprise.
她看到惊喜时咧嘴笑了。
狡黠的露齿笑
He had a sly grin on his face.
他脸上露出狡黠的露齿笑。
腼腆的露齿笑
He apologized with a sheepish grin.
他腼腆地露齿笑着道歉。
笑容绽放
A grin spread across his face when he heard the news.
听到消息时，他的脸上绽放出笑容。
收起笑容
The boss's criticism wiped the grin off his face.
老板的批评让他收起了笑容。
苦笑着忍受，逆来顺受
I didn't enjoy the long wait, but I just had to grin and bear it.
我不喜欢漫长的等待，但只能苦笑着忍受。
让某人收起得意的笑容
His smug attitude made me want to wipe the grin off his face.
他那自鸣得意的样子让我想让他收起笑容。
像柴郡猫一样咧嘴笑（形容笑得合不拢嘴）
After winning the lottery, he was grinning like a Cheshire cat.
中了彩票后，他笑得合不拢嘴。
柴郡猫咧嘴笑了。
He couldn't help but grin like the Cheshire Cat when he heard the good news.
听到好消息，他忍不住像柴郡猫一样咧嘴笑了。
Use grin naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
Grin中的G像张大的嘴，rin像'润'，牙齿润泽，露齿而笑。
[object Object]
动词常用搭配 grin at sb/sth；现在分词需双写n：grinning
Dictionary facts from ECDICT, WIKTIONARY.