非洲有一种怪树,白天它和普通的树一样,但一到夜晚,从树干到树枝都会发出明亮的光,人们可以在树下看书,做针线活。原来,这种树的树皮里含有大量的磷。 There is a strange tree in Africa. It is like a normal tree in the daytime. But at night, it emits bright light from the tree trunk to the branches. People can read books under the tree and do needlework. It turned out that the bark of this tree contains a lot of phosphorus.