Look at these two brothers! Zhang Muyao (right) and Zhang Muyuan (left) study at Beijing Jingshan School. They have the same hobby'climbing mountains. 前不久，小兄弟俩齐心合力爬上了一座很高很高的山。It's in Africa. 那就是位于坦桑尼亚境内海拔5895米的非洲最高峰——乞力马扎罗山！