waiter (n.)
服务员

例句：
The waiter brought¹ our food to us quickly.
这个服务生很快地把我们的食物端来了。

come to hand
到手（多指收到来信） 

例句：
Your letter has just come to hand.
刚收到你的信。

It's time for school.
该上学了。

It's time for lunch.
该吃午饭了。

对话：
A: Hurry up, Tony. It's time for school.
B: All right. I'm coming.

A：快点，Tony。该上学了。
B：好的。我马上就来。