Have you ever imagined a world without trees?Try it,and you will see the whole world dry up and l
问题描述：
Have you ever imagined a world without trees?Try it,and you will see the whole world dry up and l
答
你曾经幻想过一个没有树的世界吗?试一下,你就会看到,整个世界都将变得干涸.