Correct

忽闪

/ hūshǎn / 
Strokes

Definition

to glitter/to gleam/to sparkle/to flash

Example

As a Verb

flash; sparkle

1
Jǐngchē
警车
dǐngshàng
顶上
de
的
dēng
灯
yīzhí
一直
zài
在
hūshǎn
忽闪
  
。

The light on top of the police car kept flashing.