Correct

逐个

/ zhúgè / 
Strokes

Definition

one by one/one after another

Example

As an Adverb

one by one

1
Zhúgè
逐个
yánjiū
研究
wèntí
问题

look into the matters one by one

2
Zhúgè
逐个
qīngdiǎn
清点

count one by one

3
Zhúgè
逐个
jièshào
介绍
láibīn
来宾

introduce the guests one by one

4
Zhúgè
逐个
jiǎnchá
检查
chǎnpǐn
产品
de
的
zhìliàng
质量

examine the quality of the products one by one