grin

"Grin" 在古英语中的词根是 "grinnan"，这个词的意思是"露出牙齿"，这就是为什么 "grin" 能用来形容一个人开心地笑出声的原因。

["v. 露齿而笑，咧着嘴笑；龇牙咧嘴\n n. 露齿笑，咧着嘴笑\n n. (Grin)（俄、美）格林（人名）\n \n [\n 复数\n grins\n 第三人称单数\n grins\n 现在分词\n grinning\n 过去式\n grinned\n 过去分词\n grinned\n ]"]

He always had this inane grin.

他总是傻傻地咧嘴笑。

Mary gave her a sheepish grin.

玛丽难为情地冲她咧嘴一笑。

An enormous grin spread across his face.

一个灿烂的笑容绽开在他的脸上。

可以通过动态的画面来记忆这个词，比如想象一下你最喜欢的喜剧角色欢快地笑着。

看视频学发音

It was cute.I had snapback, toothless grin,used skinned knees as street cred,

He listened to me carefully,and responded with a grin."Why don't you try?"

and went after life with so much energyand an ear-to-ear grin.Now, in my years of working with kids with critical illnesses at camp,

I mean, what's not to love about an animal that's bornwith a fixed grin on its face?(Laughter)

with a massive, strong forearm and the caption, "I just met Popeye,"with a huge grin on his face.(Laughter)

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