顽固不化

Pinyin	wán gù bù huà (assembled character by character — no dictionary entry for the phrase)
Literally	顽 mischievous + 固 hard + 不 no + 化 make into (character by character)
Songs using it	1 of 6,545 analysed

Songs that use 顽固不化

Easiest first. Each bar is the whole song’s vocabulary split by HSK level.

HSK 1HSK 2HSK 3HSK 4HSK 5HSK 6HSK 7-9Beyond HSK

Song	Artist	HSK level split
顽家	Jony J