Correct

空转

/ kōng zhuǎi /

Strokes

Definition

idling

Example

As a Verb

(of a motor, etc) idle; race

1

Jīqì

机器

kōng

空

zhuǎi

转

zhāo

着

。

The machine runs idly.

2

Kōngzhuàn

空转

sùdù

速度

idling speed

3

Ràng

让

mǎdá

马达

kōngzhuǎi

空转

idle down the motor

As a Verb

(of a wheel) turn without moving forward; spin