What most people think of as a calorie is actually a kilo-calorie: It takes one calorie to raise the temperature of 1 kilogram of water 1 degree Celsius.
很多人认为的一Calorie实际上是指一千卡：即指一千克水升高一摄氏度时所需要的热量。
Aim to lose 1 to 2 pounds (0.5 to 1 kilogram) a week. To do this, you need to burn 500 to 1, 000 calories more than you consume each day, through a low-calorie diet and regular exercise.
要达到一周减掉1到2磅(0.5到1公斤)的效果，你需要通过低卡路里的饮食和规律的锻炼，除去你每天的正常消耗外，再燃烧掉500到1000卡路里。
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