Calories show the energy content of different foods. We all need a certain amount each day to make our bodies work properly. Unfortunately, people in Europe and the US now eat about 20 times as much sugar and at least five times as much fat as they did in 1800. This may have something to do with the increase in heart disease in Western countries .

　　卡路里的能量含量不同的食物。我们都需要一定的每一天，让我们的身体正常工作。不幸的是，人们在欧洲和美国现在吃大约20倍多的糖和至少五倍的脂肪，因为他们在1800。这可能是因为心脏病在西方国家增加。

　　For wedding feasts(婚宴), the Bedouin people sometimes prepare a meal of stuffed roast camel. First, they stuff a fish with eggs. Then they put the fish inside a chicken. They put the chicken inside a whole roast sheep. Then, finally, they put all of this inside a cooked camel!

　　婚礼宴会(婚宴)，贝都因人有时准备一顿烤骆驼。首先，他们把鱼和鸡蛋。然后他们把鱼藏鸡。他们把鸡放在烤全羊。然后，终于，他们把所有这里面一个煮熟的骆驼!

　　The avocado contains 165 calories for every 100 grams of fruit. This is more than eggs or milk. It also contains twice as much protein (蛋白质) as milk and has more vitamin A, B and C.

　　鳄梨含有165卡路里的热量每100克的水果。这比鸡蛋或牛奶。它也包含两倍的蛋白质(蛋白质)牛奶和较多的维生素A，B和C。