A later treaty promised 1.5 million acre feet to Mexico.

后来的一项条约承诺向墨西哥提供一百五十万英亩英尺。

With each allocated the same amount of water per year, 7.5 million acre feet.

每人每年分配相同的水量，七百五十万英亩英尺。

Specifically 17 million acre feet per year.

- 特别是每年 1700 万英亩英尺。

Olives would take about one and a half acre feet of water.

橄榄需要大约一英亩半英尺的水。

Alfalfa takes seven to nine acre feet of water a year to grow it.

紫花苜蓿每年需要七到九英亩英尺的水才能种植。

And between 2000 and 2020, it was only 12.4 million acre feet.

而在 2000 年到 2020 年间，它只有 1240 万英亩英尺。

An acre foot is the amount of water it takes to fill a 1 acre area to a depth of 1 foot.

一英亩英尺是指填满一英亩面积到一英尺深所需的水量。

But based on tree ring data, we know for the last 900 years that the average flows in the Colorado River Basin are only 14.3 million acre feet.

- 但根据树木年轮数据，我们知道在过去 900 年中，科罗拉多河流域的平均流量仅为 1430 万英亩英尺。