Meaning of zhǐ chū:
zhǐ chū
指出
Verb
to indicate; to point out
Lǎoshī zài hēibǎn shàng zhǐchū le cuòwù.
老师在黑板上指出了错误。
The teacher indicated the error on the blackboard.
Lǎoshī zài kètáng shàng zhǐchū le wǒmen de cuòwù.
老师在课堂上指出了我们的错误。
The teacher pointed out our mistakes in class.