She has bitten her nails down to the quick.

她咬指甲都咬到了活肉。

《牛津词典》

Change the class to the quick fix class that you just created.

将类更改为您刚刚所创建的快速修复类。

youdao

She had been hurt to the quick, and her sensitive nature was quivering with the shame of it.

她受到了严重的伤害，他那敏感的天性因为那耻辱而颤抖。

youdao

So Captain Sullenberger made a quick decision to land the plane on the freezing water of the nearby Hudson River.

VOA: special.2009.04.01

But before we'd do that I'd like to just have a quick discussion about your experience with the Daily Plate.

但是在我们讨论之前,我想对你们,所做的每日饮食记录做个简单说明

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

The other quick thing I want to say is that I do have office hours today from 3 to 5, so feel free to stop by if you have questions about problem-set 3 that you're finishing up.

我还想说一件小事,我今天的答疑时间是三点到五点，如果你对于第三次作业还有任何疑问,请在这个时间段来找我，不必客气。

麻省理工公开课 - 化学原理课程节选

The loss of one of them, fictional as it was, cut me to the quick.

ENGADGET

The likeliest explanation: Rembrandt's testimony to the quick circle Giotto tossed off to prove his accomplished mastery.

WSJ: Rembrandt, Van Dyck, Gainsborough: The Treasures of Kenwood House, London | Museum of Fine Arts, Houston | Status Symbols | by Willard Spiegelman

Larkin survived the attacks thanks to the quick thinking of a few folks.

FORBES: 10 Secret Service Survival Tips for Travelers