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Open the tool →屋下盖屋 (wū xià gài wū) is a Chinese idiom (chengyu) meaning “to duplicate what has already been done without any innovation”.
屋下盖屋 is pronounced wū xià gài wū in Mandarin Chinese.
Literally, 屋下盖屋 means “Building a house under a house”. It is used to mean “to duplicate what has already been done without any innovation”.
比喻重复他人所为而无创新