gnaw
verb [ I + prep, T ] uk/nɔː/ us/nɑː/
(BITE)
咬，啮，啃（通常指啃出孔洞或逐渐啃坏）
to bite or chew something repeatedly, usually making a hole in it or gradually destroying it
Babies like to gnaw hard objects when they're teething. 婴儿在长牙时喜欢啃咬硬物。
A dog lay under the table, gnawing on a bone. 一条狗趴在桌下啃骨头。
(FEEL WORRIED)
使烦恼
to make you feel worried or uncomfortable
I've been gnawed by guilt about not replying to her letter yet. 我到现在还没有回她的信，心里一直感到很内疚。
The feeling that I've forgotten something has been gnawing at me all day. 我一整天都坐立不安，老感觉忘了什么事情。
Phrasal verb
gnaw away at something 磨损；消耗；侵蚀
to gradually reduce or spoil something
Bad debts are continuing to gnaw away at the bank's profits. 坏账继续吞噬着银行利润。