曾 céng — once
céng (second tone, rising)ceng2
once
Level 4· 2021 three-band, nine-level proficiency standardadverbproper noun
Meanings
once
once; already; ever (in the past); former; previously; (past tense marker used before verb or clause)
adverb
once
once
once; already; ever (in the past); former; previously; (past tense marker used before verb or clause)