"gnaws" in Chinese (Simplified)
啃咬折磨（比喻用法）
Definition
用牙齿缓慢、反复地啃咬某物。也可以比喻指某事反复困扰或使某人担忧。
Usage Notes (Chinese (Simplified))
常与老鼠、狗等动物相关。比喻用法如“gnaws at”，表示某种情绪反复困扰，如“内疚折磨着他”。不用于大或快的咬，用‘bite’或‘chew’更合适。
Examples
The mouse gnaws on the cheese every night.
老鼠每天晚上都在**啃咬**奶酪。
My dog gnaws his bone for hours.
我的狗会**啃咬**骨头好几个小时。
The rabbit gnaws on carrots in the garden.
兔子在花园里**啃咬**胡萝卜。
He never talks about what gnaws at him inside.
他从不谈论内心**折磨**着他的事情。
The fear of failure gnaws at her every day.
害怕失败的念头每天都**折磨**着她。
Something gnaws at the back of my mind, but I can't figure out what it is.
总有点事在我心里**折磨**着我，但我说不上是什么。