Correct

走题

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Strokes

Definition

to get off the main topic/to digress

Example

As a Verb

(of a speech, etc) digress from the subject; stray from the point; be off the point

1
Mìngtí
命题
zuòwén
作文
kě
可
buxǔ
不许
zǒu
走
tí
题
  
。

Digression from the subject is not allowed in a topic composition.

2
Shuō
说
zǒu
走
tír  
题儿

speak beside the point; wander from the subject; keep off the point