There is only one problem of earth language, fast and good. Give 50 points.

1. There is no doubt that you came in a hurry and left at a loss. 2. Because if you

3. For example, let human beings correctly realize that human beings can't survive without the earth.

The earth shows its smallness, let's protect it.

The importance of the earth to mankind

All kinds of growth substances we need come from the earth.