树长大了可以乘凉、可以做家具、防风沙、做建设材料。工业、农业、科学文化事业都离不开木材。
When the trees grow up, they can enjoy the cool, make furniture, sand proof and construction materials. Industry, agriculture, science and culture are inseparable from wood.
人们生活中也离不开树木，因树木还能净化空气，在阳光的作用下，吸收二氧化碳，制造氧气给人畜呼吸。
People can"t live without trees, because trees can purify the air, absorb carbon d()ioxide under the effect of sunlight, and make oxygen for people and animals to breathe.
树木有这么多的用处，我们一定要爱护树林，多栽树木。
Trees have so many uses. We must take good care of the trees and plant more trees.
