美 [nɔː æt]
困扰：对（某人）造成担忧或关注的源头。
折磨：对（某人）造成痛苦或困扰。
... break up 结束，散会 gnaw at 侵蚀 eat at 侵蚀, 困扰 ...
啃, 咬, 侵蚀 gnaw at; gnaw into 咬 动词1.
It will also gnaw at Mr Summers, who leaves his job of repairing the economy unfinished.
它也会折磨萨默斯，因为他的经济修复工作尚未完成。
Thinking it was going to gnaw at the dead body, he drew his sword and exclaimed:" You shan't touch her so long as I am alive!"
想到蛇是来咬尸体的，他拔出宝剑说：“只要我还活着，你就别想碰她！”
I think eventually that question would gnaw at you and sour and override the pleasure.
我想最终这个问题会折磨你，让你失望，让你放弃快乐。
And I think eventually that question would gnaw at you and sour and override the pleasure.
最终那个疑问会折磨你,飞升超越那种快感。
死亡课程节选 : 耶鲁公开课
As polls have shown, opposition to the war effort has also begun to gnaw at the conservative base.
At its most extreme, people like Masellis will do just about anything to satisfy a hunger that can gnaw at the will just as hard as an addiction to alcohol, drugs or gambling.
It's already starting to gnaw at them.