up的短语辨析sign up

例句：

They should either monitor their websites better so that children do not sign up too early,or they should adjust their websites to the needs of younger users ．

他们要么更好地监控自己的网站,以免孩子过早注册,要么根据年轻用户的需要调整网站。

The pharmacist will make up your prescription.

药剂师会给你依处方配药。

Can you make up a foursome for tennis tomorrow?

你们明天能凑足四人打网球吗？

Stop shilly-shallying and make up your mind.

别犹豫了，拿主意吧。

It's now or never,so make up your mind

机不可失，下决心吧。