The idiom is: by the skin of one's teeth.

切。

He grinded his teeth and scowled.

他切，怒目而视。

He ground his teeth and looked fierecely at the traitor.

他切，恶习狠狠地盯着叛徒。

How the other red hats would gnash their teeth in envy.

其他红衣主教该怎样的切地嫉妒不已啊。

" Dumbledore happens to trust me, " said Snape through clenched teeth.

“邓布利多恰好很信任，”斯内切地说。

I'm on the new captain's hit list and my partner's.

位新警长恨恨得切 位搭档也是。

“I bet Dumbledore saw right through you, ” said Harry, his teeth gritted.

“敢说邓布利多早把你看透了。” 哈利切地说。

42 They will throw them into the fiery furnace, where there will be weeping and gnashing of teeth.

42 丢在火炉里．在里必要哀哭切了。

What about some of the characters who make office life so teeth-grinding?

对于些让你在办公室生活中切的角色，又该怎么办呢？

They squirmed, kicked, flailed their sharp little fists, and gnashed their teeth.

他们扭动着身体，两脚乱蹬，挥着尖尖的小拳头，切。

" I hated it, " she said bitterly. " I loathed it."

" 讨厌它，" 她切地说，" 厌恶它。"

" Oh, 'ow I 'ate 'im! 'Ow I 'ate 'im" ! he gritted out.

" 恨死他了！ 恨死他了！" 他切地说。

I closed my eyes and inhaled slowly through my nose, aware that I was gritting my teeth.

闭上眼睛，鼻子慢慢地吸着气，意识到自己在切了。

30 And throw that worthless servant outside, into the darkness, where there will be weeping and gnashing of teeth.'

30 把这无用的仆人、丢在外面黑暗里．在里必要哀哭切了。

“Dumbledore's been driven out of this castle by the mere memory of me! ” he hissed.

“只不过利用了的记忆，就把邓布利多赶出了这座城堡！”他切地说。

The crime beat boys must have gnashed their teeth and gnashed them in vain.

罪打小子肯定是切， 白白切了。

“As I've told you, ” he said through gritted teeth, “Kingsley is protecting the Mug—I mean, your Prime Minister.”

“告诉过你了，”他切的说，“金斯莱要保护麻——的意思是，你们的首相。”

That's what you're shoving between your teeth.

这就是你切的东西。

And you definitely don’t want it in your teeth.

而且您绝对不希望它切。

He stamped and ground his teeth with rage.

他气得直跺脚， 切。