burn up
phrasal verbburn up 
- to be destroyed by heat被烧毁;被烧掉 - The spacecraft burned up as it entered the earth's atmosphere.宇宙飞船进入地球大气层时被烧毁。 
 
- The spacecraft burned up as it entered the earth's atmosphere.
- (usually used in the progressive tenses通常用于进行时 发烧;体温高 - You're burning up—have you seen a doctor?你发烧了,你看过医生吗? 
 
- You're burning up—have you seen a doctor?
- (of a fire火 烧得更旺;火势加大 
burn somebody up 
- (North American English, informal) to make somebody very angry激怒;使大怒 - The way he treats me really burns me up.他这样对待我真使我恼火。 
 
- The way he treats me really burns me up.
burn something  up 
- to get rid of or destroy something by burning焚毁;烧掉 - The fire burned up 1 500 acres of farmland.大火烧掉了 1 500 英亩农田。 
 
- The fire burned up 1 500 acres of farmland.
- to use calories or energy by doing exercise(通过锻炼)消耗热能 - Which burns up more calories—swimming or cycling?游泳和骑车,哪种运动消耗热量大? 
 
- Which burns up more calories—swimming or cycling?