ㄒㄩㄧㄡˇㄑㄧˊㄅㄧㄠˇxūyǒu‑qíbiǎo

虚有其表
  1. 形容華麗外表沒有實際內涵 身材壯碩經常生病真是虛有其表!」。

looks impressive but is worthless (idiom)​, not as good as it looks, a reputation with no substance
mehr Schein als Sein (Tech)​