Like Joey's constant knuckle-cracking isn't annoying?

像乔伊，常扳指关节就不惹人厌吗？

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The medicine prize went to a physician who, for fifty years, cracked the knuckles on only his left hand to test his mother's contention that knuckle-cracking causes arthritis.

医学奖授给了一位内科医生，他50年来每天不断扳左手手指，以验证自己母亲说扳手指会引发关节炎的话是否正确，他的结论是：妈妈，你错了。

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After being warned by his mother to swear off that demon knuckle cracking, young Donald Unger tested the accuracy of this hypothesis on himself.

自从小时候受到母亲警告说不可以敲打指关节后，小唐就开始在自己的身上测试这种推断的准确性。

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But after showing all that personality onstage, why didn't he have a reaction when he finally won beyond his familiar knuckle-cracking habit?

WSJ: 'German curse' no more for NYC Spelling Bee champ