3500卡路里相当于1磅(0.45千克)脂肪，同样的，如果要减轻1磅，那么必须消耗比摄入量多3500卡的能量。
Because 3, 500 calories equals about 1 pound (0.45 kilogram) of fat, you need to burn 3, 500 calories more than you take in to lose 1 pound.
每克蛋白质是4卡路里，所以这位54.5千克、每天需要大约54克蛋白质的跑步者每天有200到220千卡的能量来自蛋白质。
One gram of protein equals 4 calories, so our 120-pound runner, who needs approximately 54 grams of protein, should allow 200 to 220 calories for protein each day.
该汉堡王直径足有30厘米，内有牛肉3千克，热量达13000卡，足够一个成年男性食用1个星期。
Standing at around 30 centimeters in diameter, the burger king contains three kilos of beef and more than 13, 000 calories - almost the amount an average man should consume in a week.
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