Why were his teeth chattering like that?

他的牙齿为什么打颤？

youdao

"It was y-you?" Harry said at last, his teeth chattering, his voice weaker than usual due to his near-strangulation.

“是——是你？”哈利终于说道，牙齿格格打架，声音因为刚才差点被勒死而比平时微弱。

youdao

The chattering of teeth is from the cold or from rage.

牙齿的颤动是由于寒冷或愤怒。

youdao

One little boy in blue pyjamas and sandals gave us a warm smile, through chattering teeth.

BBC: Syrian refugees endure plunging temperatures

"I meant what I said and I said what I meant, " the devoted elephant explains through chattering teeth and all sorts of weather, "An elephant's faithful one hundred per cent!"

WSJ: Parsing the Fun in Life