一一 yī yī — one by one
yī (first tone, high and level) yī (first tone, high and level)yi1 yi1
one by one
Levels 7–9· 2021 three-band, nine-level proficiency standardadverb
Meanings
one by one
one by one; one after another
adverb
one by one
one by one
one by one; one after another