Water supply from Himalayan glaciers is ebbing.
来自喜马拉雅山冰川的水源正在减少。
Yet people depend on just 14 mammal and bird species for 90 percent of their food supply from animals.
然而,人们却仅仅依靠14种哺乳动物和禽鸟来获取其90%的动物源食物供应。
Each time Chatwin returned to Paris, he would pick up a fresh supply from his favorite stationers.
每次Chat win回到巴黎都回去补充这款他喜欢的文具。
People usually get their silk supply from worms.
VOA: special.2009.10.30
Separating our water supply from sewage and learning how to do wastewater treatment was a really important part of reducing infectious diseases.
把净水和污水分开,以及学会污水处理的方法,是减少感染性疾病传播方法中的重要部分
So, this is what goes on in an electrolysis cell, and it works thanks to input energy from a power supply shown here.
所以,这是在一个电化学电池中发生的,它是靠输入的能量工作的,从和这个类似的电源输出的能量。
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