The villagers are rationed to two litres of water a day.

村民每天的用水量限定为两升。

《牛津词典》

MOST people may drink only two litres of water a day, but they consume about 3,000 if the water that goes into their food is taken into account.

大部分人一天的饮水量仅为2升，但若是将食物产出时所需水量一并算进，每天的耗水量就达到了3000升。

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When they got up they skolled [drank] two litres of water each within seconds, " the helicopter pilot, Terry Gadenne, told Australian television.

上了直升机，各自一口气喝了两升水。

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He wants to know where our backpacks are, and how we plan to carry two litres of water apiece.

BBC: Missing pieces in Utah

At the squatter camp, I met a man who carries 40 litres of water in two containers, one and a half kilometres to his home every day.

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For example, a feature known as Lake Englehardt took just under three years to empty two cubic kilometres (2 trillion litres) of water.

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