warm up
1．become or make more excited or enthusiastic（使）变得热烈、活跃起来
We arrived just when the party was beginning to warm up．正当聚会开始热闹起来时，我们赶到了。
He warmed up when I told him the good news．当我把这好消息告诉他时，他兴奋了起来。
Peter's jokes certainly warmed the party up．彼得讲的笑话的确使晚会的气氛变得热烈起来。
2．become friendly变得亲热起来
When he found that we were railway workers just like him，he began to warm up．当得知我们同他一样也是铁路工人时，他开始对我们亲热起来。
3．reheat cooked food把（煮熟的食物）重新加热
The milk is warming up on the store．炉子上正热着牛奶。
My father was so late that his dinner got cold；my mother had to warm it up．我爸爸回家太晚，晚饭都冷了，妈妈不得不把饭菜再热一下。
4．become warm变得暖和起来
It was very cold this morning，but it seems to be warming up．今天早上真够冷的，现在好像变得暖和起来了。
5．get ready for a game or other event by exercising or practicing 做准备工作
The dancers began to warm up fifteen minutes before the performance．舞蹈演员们在演出前15分钟开始做准备工作。
Let's warm up the car engine a bit before we start．出发前我们先把汽车发动机预热一下。
6．refurnish重新修整；刷新
They have just warmed up the same old plan．他们只不过是把原来的计划改头换面罢了。