Translation of "Registration" in Chinese

What is your registration number?

他的照牌號是多少？

Does it also work without registration?

不注册也行吗？

The registration period is already over.

報名時間已經過了。

Be sure to fill out the registration form in person.

确保亲自填写注册表格。

I am able to obtain a registration form for free.

我可以免费获取一份注册表格。