洞[dòng] 基本解释：
新英汉大词典：
- 洞[dòng]
- 名词- （物体上穿通的或凹入较深的部分; 窟窿; 洞穴） hole; cavity:
mountain cave;山洞
dig a deep hole in the ground;在地上挖一个深洞
- 形容词- （深远; 透彻） profound; thorough; clear:
have a thorough understanding of the actual situation (as of the opposing side)洞识虚实
以上内容来源于：《新汉英大辞典》
例句与用法：
The acid burnt a hole in the carpet.
The mouse scurried into its hole when the cat appeared.
Water sluiced out of the hole.
He knocked a big hole in the wall.
There is a hole in my sock.
The mice have nibbled a hole in the cheese.
The rat gnawed a hole through the wall.
The cat remained motionless, waiting for the mouse to come out of its hole.
洞的其他解释: