"worry at" in Chinese (Simplified)
咬反复思考（一个问题）
Definition
多次用牙咬某物，或对一个问题不停地焦虑思考。
Usage Notes (Chinese (Simplified))
既可以指字面意义（动物或人咬东西），也可指反复思考烦恼的事。比日常“担心”更偏文学或书面用法。
Examples
The dog likes to worry at his bone for hours.
小狗喜欢几个小时不停地**咬**骨头。
He continues to worry at the same math problem every day.
他每天都在**反复思考**同一个数学问题。
The cat will worry at a loose thread on the couch.
猫会**咬**沙发上的松线头。
She tends to worry at things she can't control, even when they're small.
她总是**反复思考**那些无法控制的小事。
Stop trying to worry at the issue—let’s move on.
别再**反复思考**这个问题了，我们继续前进吧。
Sometimes, he will just worry at an idea until he finds a solution.
有时候，他会一直**反复思考**一个想法直到找到解决办法。