Correct
轧轧
/ yàyà /
Strokes
Definition
(onom.) sound of machinery, e.g. squeaking
Example
As an Onomatope
squeak; click
1
Jiǎoliàn
铰链
yà
轧
yà
轧
zuōxiǎng
作响
。
The hinges squeaked.
2
Féngrènjī
缝纫机
yàyà
轧轧
de
地
xiǎng
响
zhāo
着
。
The sewing machine was clicking away.