A rat can gnaw a hole through wood.是什么意思？

A rat can gnaw a hole through wood.

老鼠能啃穿木头.

rat

n. 大老鼠，似鼠动物，<非正式>鼠辈，卑鄙小人；vi. 捕鼠，<俚>背叛，告密；

例句
What did you do with the gun you took from that little rat Turner?
你是怎么处理从那个叫特纳的小叛徒手里得到的枪的？

can

aux. 能够，可以，有机会；n. 金属罐，一听，金属容器；vt. 将…装罐保存，炒…鱿

例句
When I listen to her play I can hear a new Nigel Kennedy.
从她的演奏中我听出了新一代的奈杰尔·肯尼迪。

gnaw

vt.& vi. 咬，啮，使苦恼，折磨，侵蚀，使腐蚀；vi. 咬，折磨，侵蚀；

例句
Woodlice attack living plants and gnaw at the stems...
木虱会侵害活体植物并啃咬它们的茎。

hole

n. 洞，孔，洞穴，穴，缺陷，<口>绝境；vt.& vi. （在…上）打洞或穿孔；vi. 凿洞，（高尔夫球等）进洞；

例句
She'd cut a jagged hole in the tin, bending a knife in the process.
她在罐头上曲里拐弯地划了个口，其间还弄弯了一把小刀。

through

prep. 通过，穿过，经由，透过，凭借；adv. 从头到尾，彻底，自始至终；adj. （电话）接通，通话完毕，有洞的，直达的；

例句
The proposal was instantly voted through with two to one in favour, accompanied by enthusiastic applause...
在热烈的掌声中，提案以2比1的优势很快通过了表决。

wood

n. 木材，树林，木制品；vi. 收集木材；vt. 在…植树造林，给…添加木柴；adj. 木制的，失去理智的；

例句
I recently acquired some wood from a holly tree...
最近我从一棵冬青树上弄了些木料。