They gnaw on trees and harm them.
它们啃食并伤害树木。
狗爱啃骨头。
Pets may also gnaw on electrical cords for Christmas-tree lights.
宠物也会因啃咬彩灯的电线而触电。
To determine what patterns humans leave behind when they chew or gnaw on bones, the researchers had four different groups of European people chew raw and cooked meat bones from various animals.
为了确定人类啃噬骨骼后会留下什么类型的痕迹，研究人员组织了四个不同的欧洲人小组，让他们啃噬不同动物或生或熟的肉骨头。
That Arsenal chant must gnaw away at Tottenham fans who have suffered the indignity of watching their local rivals clinch the title on their ground not once, but twice.
这首阿森纳赞歌必定折磨着在自己主场遭受侮辱并目睹同城死敌获得联赛冠军的托特纳姆球迷，这并非第一次，而已经是第二次。
That Arsenal chant must gnaw away at Tottenham fans who have suffered the indignity of watching their local rivals clinch the title on their ground not once, but twice.
这首阿森纳赞歌必定折磨着在自己主场遭受侮辱并目睹同城死敌获得联赛冠军的托特纳姆球迷，这并非第一次，而已经是第二次。
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