Grasslands occur where rain is too sporadic for forests to exist. 降雨量不足以养育森林时就会出现草原
And these forests in Madagascar are its home. 马达加斯加的这片森林就是他的家
and made the seasonal forests the greatest forests of all. 也使季相林变得最为伟大
As the alternation of wet and dry seasons brings change to some tropical forests 干季雨季的交替变换给热带的树木带来了变化
For the creatures of India's teak forests, 对于印度的这个柚木林的动物们来说
These forests stand in the tropics. 这片森林在热带地区
The spring blooms of the deciduous woodlands have no equivalent in either the great conifer forests, or the tropical jungles. 春--使落叶林与针叶林和雨林没有任何相似性
In the broad leaf forests of Russia 在俄罗斯的阔叶林里
the deciduous forests are changing. 可以看到落叶林在不断变化