释义：
call up 打电话
口语中表示“给某人打电话”。一般可以用作 call up somebody to+动词或 call up somebody+ 动词的形式。
例句：
Why don't you just call up Helen and invite her over?
你怎么不给海伦打电话邀请她？
Call up Tom and tell him we're coming over.
给汤姆打电话，跟他说我们马上到。
I'd like to call up Cindy to talk about that.
我想给辛迪打电话聊聊这事。
I want to call up someone who'd like to share a conversation.
我想找个人打电话说说这事。
对话：
A: Let's call up and order a pizza.
我们打电话叫比萨吧。
B: Great idea. I'm feeling really hungry.
好主意，我现在很饿。
