and this is an invitation to join in the meal. 这是邀请它们加入宴席的信号
Leaping into the lake is an act of desperation - 跳入湖中是绝望的选择
For others the change is far less welcome. 而有些动物却不是很喜欢这种改变
a vast area of the Kalahari is transformed into a fertile paradise. 卡拉哈里的广大地区变成了富饶的天堂
Nowhere on our planet is the life giving power of water so clearly demonstrated. 地球上没有其它地方能比这里 更能清楚地证明水对生命的意义
After weeks of marching their trek is coming to an end. 经过数周的长途跋涉 它们终于抵达了终点