warm up [wɔ:m ʌp]

以下由轻松背单词网站提供

（使）变暖和起来；（使）活跃（或兴奋）起来

Let's warm up this party with a little action.让咱们搞点小活动使聚会热闹起来。
How long should the engine warm up before we start?我们出发前，引擎需要预热多久？