精髓 jīng suǐ — marrow
jīng (first tone, high and level) suǐ (third tone, dipping)jing1 sui3
marrow
Levels 7–9· 2021 three-band, nine-level proficiency standardnoun
Meanings
marrow
marrow; pith; quintessence; essence
noun
marrow
marrow
marrow; pith; quintessence; essence