Correct

插断

/ chā duàn /
Strokes

Example

As a Verb

interrupt (sb speaking); chip/cut/break/butt in

1
jiǎnghuà
讲话
shí
biè
chā
duàn
  

Don't butt/chip/cut in when I'm speaking.

2
Bèi
biéren
别人
huà
chā
duàn

be interrupted by others