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Jyutping si6 fei1 din1 dou2
Pinyin shì fēi diān dǎo

Definitions (Wiktionary)
  1. phrase, idiomatic
    to confound right with wrong
    (syn.) 混淆黑白, 颠倒黑白, 混淆是非, 颠倒是非, 顛倒黑白, 顛倒是非