Africans usually have thick, dark skin, curly, black hair and strong legs. 非洲人通常是厚厚的深色皮肤，黑色的卷发和健壮的双腿。

　　Europeans usually have thin, pale skin, their hair is also very thin, and they have small heads. 欧洲人通常是薄薄的浅白皮肤，他们的头发也很稀薄，头也很小。

　　Europeans were different from Africans because they are different races. 欧洲人不同于非洲人，因为他们是不同的种族。

　　In order to survive in different climates, humans have developed different body features. 为了在不同的气候条件下生存，人类已经进化出了不同的身体特征。

　　Any differences make racial differences. 任何差异都会造成种族差异。

　　It is hard to tell how many races are in the world, because of mixed race people. 因为混血儿，很难说世界上有多少种族。

　　Some people think their race is better than other races, however this is wrong. 有些人认为他们的种族比其他种族好，然而这是错误的。