adj.(长时间)折磨人的，令人痛苦的，使人苦恼的
v.咬，啃，啮
n.咬
gnaw的现在分词

原形：gnaw第三人称单数：gnaws过去式：gnawed过去分词：gnawed现在分词：gnawing

The rat gnawed on the wooden crate, trying to escape.
猫咪咬着木箱，试图逃出来。
She bit her lip, gnawing at her frustration over the situation.
她咬着嘴唇，对这个情况感到沮丧不已。
The dog gnawed on its bone for hours, showing great persistence.
狗对着骨头啃了几个小时，显示出极大的耐心。
The old house had a musty smell, and I could hear mice gnawing in the walls.
这座老房子有股发霉的味道，我能听到墙里有老鼠在啃食。
The thief's fingernails were gnawed down to the quick from fear.
贼因为恐惧，指甲都快被咬到根部了。
The hiker's boots were so worn that the soles started to gnaw through.
徒步者的靴子磨损严重，鞋底几乎要穿破了。
The bird perched on the branch, occasionally gnawing on a piece of bark.
鸟儿栖息在树枝上，偶尔会咬一小块树皮。
She gnawed on a pencil as she waited anxiously for the results.
她焦虑地咬着铅笔等待结果。
The frostbite had gnawed away at his toes, leaving them numb and painful.
冻伤侵蚀了他的脚趾，使它们变得麻木且疼痛。
The puppy gnawed on his new chew toy, showing its teething enthusiasm.
小狗咬着它的新磨牙玩具，表现出强烈的长牙期活力。