the world is developing very quickly,but many people still haven't realized the need to protect the earth.we are destroying the earth.it has become a serious probiem.(开头)
中间一段太长不写了
if we don't stop destroying the earth,we will die out one day.
the world is developing very quickly,but many people still haven't realized the need to protect the earth.we are destroying the earth.it has become a serious probiem.(开头)
中间一段太长不写了
if we don't stop destroying the earth,we will die out one day.