动卧

dòng wò

2-character word Traditional 動臥

What 动卧 means

D-class (high-speed) sleeper train (D stands for Dongche {动车|dòng chē}) (abbr. for {卧铺动车组列车|wò pù dòng chē zǔ liè chē})

The characters in 动卧

动dòng(of sth) to move; to set in movement; to displace
卧wòto lie; to crouch

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