Correct

咻咻

/ xiū xiū /
Strokes

Example

As an Onomatope

[sound of breathing]

1
Xiūxiū
咻咻
de
鼻息

noisy breathing through the nostrils

2
Xiūxiū
咻咻
de
chuǎn
喘气

pant noisily

As an Onomatope

cry of some birds and animals

3
Xiǎo
小鸭
xiūxiū
咻咻
de
jiào
zhāo
  

The duckling is cheeping.

Related

气咻咻