This, Haddad says, is why people find it acceptable to get their water supply from their local river, even though that river water at one point mingled with the sewage of the town upstream.
哈达德说，这就是为什么人们发现能够接受从当地的河流中供水，即使那条河在某一个点上与上游城镇的污水汇合。
If the fresh water were to fall below a certain point, the salt water could rush upward and mix with it, taking out a water supply that is essential for Israel.
如果淡水降至某个临界点，咸水将上涌与之混合。这样以色列就会失去性命攸关的水源。
At this point, where I live, the water supply is plentiful, but even in cool and rainy places like England, there are times when droughts and shortages can call for water usage restrictions.
在这一点上，在本人住的中央，水的供给充沛时，但即便是在凉快的和多雨的中央像英国，有些时分干旱和欠缺能够叫用水限制。
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