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Save trees.
节约木材
Wood comes from trees.
木材来自树木
We use wood to make tables, chairs and many other things.
我们用木材来制作桌子 椅子和很多其他的东西
We should not cut down too many trees because trees help keep the air clean.
我们不应该砍倒太多的树 因为树能帮助保持空气清新
Don't use too much plastic.
不要使用太多塑料
We use plastic to make bags and bottles,
我们用塑料来制造袋子和瓶子
but too much plastic is bad for the Earth.
但太多的塑料对地球有害
We should not use too many plastic bags or bottles.
我们不应该用太多的塑料袋和塑料瓶
We should use paper bags and glass bottles.
我们应该用纸袋和玻璃瓶
