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金科玉律
jīn​kē​yù​lǜ

golden rule

Definitions Defs Origin Strokes Stroke Words Sentences Sents
金科玉律 jīn​kē​yù​lǜ
golden rule idiom
laws and regulations that are considered perfect and must be strictly followed; an unalterable principle

Frequency

Movie subtitles
0.330 per million appears in 0% of films
Written text
0.251 per million

Sources

Definitions
CC-CEDICT
Frequency data
SUBTLEX-CHBCC Corpus (BLCU)