为什么there is air polluttion,water pollution and land pollutio
为什么there is air polluttion,water pollution and land pollutio
we have air pollution,water pollution and land pollution.句意相
We have air pollution,water pollntion and land pollntion.(中文
there is ___ clean water , nor clean air and nor clean land
There was e______ clean air ,land and water.
such problems ()air and water pollution
Air pollution is more serious than water pollution.的意思?
And there is no air or water there.英语翻译,
there will be life while there is water and air
How important It is to limit air and water pollution 句子有错吗
Air pollution is becoming worse and worse.为什么是pollution而不是po
the earth is our home.we must ___the land,air,and water clea