一一

yīyī

adverb HSK 6 #2,017

Meanings

Doubling 一 emphasizes going through items individually, one at a time.

HSK 3

老师一一回答了学生的问题。

Lǎoshī yīyī huídá le xuésheng de wèntí.

The teacher answered the students' questions one by one.

HSK 5

请把名字一一念出来。

Qǐng bǎ míngzi yīyī niàn chūlái.

Please read out the names one by one.

grammar

一一 is placed before the verb: 一一检查 (check one by one), 一一介绍 (introduce one by one). More formal than 一个一个.

一 yī