ONE PHRASE, IN CONTEXT
sign up for
报名参加;注册加入

GET TO KNOW THE MEANING
读懂它,也学会这样说。
01报名参加;注册加入
IN A SENTENCE
I signed up for a first-aid course after my manager recommended it.
经理推荐后,我报名参加了急救课程。
You don't have to sign up for anything paid.
你不必注册任何付费项目。
