









lack substance
become hollow
be superficial

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Open the tool →流于空洞 (liú yú kōng dòng) means “lack substance, become hollow, be superficial”.
流于空洞 is pronounced liú yú kōng dòng in Mandarin Chinese.
“lack substance” is 流于空洞 (liú yú kōng dòng) in Chinese.