Home
Teachers
Users
PDF
Dictionary
Tools

Mstory
Story
Notebook
QA
Video

My Community
My Lesson
My Wallet
Buy CSP
Profile
Settings
Submit a Ticket
My Ticket
Help
Log off

Home
Teachers
Users
PDF
Dictionary
Tools

Correct

未定义行为

/ wèidìng yìxíng wéi /

Strokes

Example

As a Noun

undefined behaviour

Chinese Courses

HSK
BCT
TSC
Speaking Chinese
Written Chinese
Chinese Grammar
Comprehensive Chinese
Business Chinese
Sports Chinese
TV Chinese
News Chinese
Economic Chinese
Travel Chinese
Chinese Culture
Medical Chinese
Children Chinese
Teaching Chinese

Teaching Chinese

Become a Teacher
Teacher Community
How to become a teacher
How to define teacher levels

Help

How to learn Chinese
How to find a teacher
How to schedule a lesson
How to download coursewares

中文简体
English

Buy Me a Coffee

About
Help
Law
Privacy
CSP
Contact
Partners

©2026 CCHATTY HK LTD

Connect your email

Please set your email and password.

Forgot Password?

Connect account

This email already exist in Cchatty. Type your Cchatty password to link the two accounts.

Forgot Password?

Log In

Email

Phone

Keep me logged in Forgot Password?

OR

No account yet? Sign up

2-Step Authentication

The verification code has been sent to your mobile phone

Security detection

Connect your email

Please set your email and password.

Forgot Password?

Connect account

This email already exist in Cchatty. Type your Cchatty password to link the two accounts.

Forgot Password?

Sign Up

Email

Mobile

I Agree Terms of Service and Privacy Policy

OR

Already have an account? Log in

Security detection

Mstory

Please follow Cchatty's community policy.

Story

Chinese reading

Please follow Cchatty's community policy.

Notebook

Please follow Cchatty's community policy.

QA

Please follow Cchatty's community policy.

Video

Please follow Cchatty's community policy.

Video uploaded successfully

The video will be automatically published after transcoding.

Exam

Please follow Cchatty's community policy.

Request Answers:

Suggested experts(0/25)

All experts

It looks like you are visiting our website from China. Would you like to switch to our China site instead?

Correct

Definition: missing, incomplete, wrong, etc Collocation: unreasonable collocation, etc Example: inappropriate scene or difficulty, translation issues, etc Pronunciation: missing, mismatched, etc Others: please add below

0/500