残骸 (cánhái) means "wreckage" or "remains," referring to the damaged remnants of something destroyed, such as a ship, aircraft, or building. It is used in formal and news contexts when describing debris from disasters or accidents.
搜救队在海底发现了飞机的残骸。
Sōujiùduì zài hǎidǐ fāxiànle fēijī de cánhái.
The search and rescue team discovered the wreckage of the airplane on the seabed.
爆炸之后,现场到处都是残骸。
Bàozhà zhīhòu, xiànchǎng dàochù dōu shì cánhái.
After the explosion, there was wreckage everywhere at the scene.
科学家正在研究这艘古船的残骸。
Kēxuéjiā zhèngzài yánjiū zhè sōu gǔchuán de cánhái.
Scientists are studying the wreckage of this ancient ship.