如果没有空气，人类就不能活下来。 这种疾病很快蔓延到整个村庄。 十年后，我种下的小树长成了参天大树。 像火星一样，地球上的水迟早有一天会消失。

A man can’t exist without water. The disease spread all over the countryside quickly. Ten years later, the little tree I planted grew into a big one. Like the Mars, the water on the earth will disappear in time.

Have a try !