warming up

动词 warm up:

1. run until the normal working temperature is reached
   同义词：warm up
2. become more friendly or open
   同义词：warm up
3. get warm or warmer
   同义词：warm, warm up
4. cause to do preliminary exercises so as to stretch the muscles
   同义词：warm up
5. make one's body limber or suppler by stretching, as if to prepare for strenuous physical activity
   同义词：limber up, warm up, loosen up

1. The German coach has one of his substitutes warming up on the touch-line now.
   德国教练现在正让一个替换队员在边线旁做准备活动。
2. My car is nuisance in the winter; the engine only runs in fits and starts until it has really warmed up.
   我的汽车在冬天真讨厌，引警在真正预热起来前只能转转停停。
3. The singers are warming up before the concert.
   歌唱家们正在为开音乐会作准备。
4. A transistorize radio takes no time to warm up.
   晶体管收音机不需要预热时间。