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来源：雅诚德英语网
Not making electricity is not an option on the river, the BPA argues, because only a limited amount of water can be kept out of turbines and spilled over federal dams.
BPA随后解释道，并不是说非要进行水力发电不可。因为只有额定的水量能流经涡轮机组，注入水坝中。
Not making electricity is not an option on the river, the BPA argues, because only a limited amount of water can be kept out of turbines and spilled over federal dams.
BPA随后解释道，并不是说非要进行水力发电不可。因为只有额定的水量能流经涡轮机组，注入水坝中。