When I grin, the stitches tauten.

当我咧嘴而笑，针脚便会绷紧。

youdao

I grin, quite pleased by this turn of events.

我咧嘴笑了笑，对事情的转变感到很高兴。

youdao

"I was just passing by and thought I'd stop in," I said, working up a grin, though I didn't feel much in the mood for levity and had begun to wish I'd stayed home and let my neighbor suffer in peace.

“我刚刚路过这里，想顺便来看看你”，我还是咧嘴笑了笑说。，尽管我的心情不是那么轻松，而且也开始希望自己待在家里就好了，好让我的这位邻居免受打扰。

youdao

"I usually just grin and bear it, " said Mr. Asaro, who said he has mild symptoms every year.

WSJ: Sniff, Sneeze, Blow, Wipe, Repeat

I'm sure I had a big grin on my face because it was the end of a long quest, the completion of which was never a certainty.

CNN: I ran 50 marathons in 50 states, all while battling cancer

In Nevada, we have no idea what the events and places will be, so the Democratic Party is trying to help candidates know when some small town is having, you know, some kind of steer roping or whatever, and the candidates are trying to figure out what's the place where the locals hang out and I can shake hands and grip and grin, is it Bagel Mania?

NPR: Presidential Race Comes Early to Primary States