Maria de gra ç as silva foster

4.玛丽亚•德•格雷卡斯•席尔瓦•福斯特

Managed gra lands : a greenhouse gas sink or source ?

管理的草原：温室气体汇（下沉）还是源？

As he flew close , she gra ed him wildly .

鸟儿飞近时，她死命将它抓住。

The gra seeks her crowd in the earth .

绿草求她地上的伴侣。

Research on the spring fire-risk forecasting model in dry gra .

内蒙古干草原春季火险预报模型的研究。