森林的作用是能夠防風土壤堅固防止水土流失。狂風吹来可以用樹身樹冠擋去路

森林的作用是能夠防風土壤堅固防止水土流失。狂風吹来可以用樹身樹冠擋去路，降低風速，树根又长又多，能抓住土壤，不让大風吹走

結果 (英文) 1:

The role of forests is
capable of strong wind and soil to prevent soil erosion. The wind blowing the tree trunk canopy can block the path, reducing wind speed, long roots and more, to seize the soil, do not let the wind blow away

結果 (英文) 2:

The role of forests is
Strong wind-proof soil to prevent soil erosion. The strong wind can use the tree can block the road, reduce the wind speed, the root of the tree is long and many, can seize the soil, do not let the wind blow away

結果 (英文) 3:

The role of forests is
It can prevent wind, soil and soil erosion. When the wind blows, it can block the way with tree body and crown, reduce the wind speed, and the roots are long and many, which can catch the soil and prevent the wind from blowing away