What are crayons made of? 蜡笔是用什么制作的？

　　Crayons are made of an oiled chalk. 蜡笔是用油性粉笔做成的。

　　Children love to write and draw pictures with crayons. 孩子喜欢用蜡笔写字和画画。

　　Why do children use crayons very often? 孩子为什么经常使用蜡笔呢？

　　Crayons are very easy for the children to work with. 因为使用蜡笔对孩子来说非常容易。

　　Also, there are various colors of crayons. 而且，蜡笔的颜色多种多样。

　　The first box of crayons was made in 1903. 1903年制作出了第一盒蜡笔。

　　Their colors were black, brown, blue, red, purple, orange, yellow and green. 它们的颜色是黑、棕、蓝、红、紫、橙、黄和绿色。