- Home
- Teachers
- Users
- 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
Correct
城铁
/ chéng tiě /
Strokes
Definition
rapid transit system/urban railway
Example
As a Noun
urban/city rail transit system; urban rapid-transit rail system; city rail lines