Correct

零卖

/ líng mài /
Strokes

Example

As a Verb

retail; sell (by/at) retail

1
Zhèxiē
这些
líng
mài
měi
zhī
yuán
  

The pens retail at/for one yuan each.

2
men
你们
shì
批发
  
,
háishi
还是
líng
mài
  
?

Do you sell wholesale or retail?

3
Líng
mài
shāngpǐn
商品

retail goods; sell goods (by/at) retail

As a Verb

sell by the piece or in small quantities

4
Zhè
tào
cān
餐具
chéngtào
成套
chūshòu
出售
  
,
líng
mài
  

These set of tableware are sold by the set, not by the piece.