英语语法分析

Often the cheapest way to provide irrigation water in the dry tropics is through small-scale projects, such as gathering rainfall in depressions and pumping it to nearby cropland.

在干旱的热带地区，提供灌溉水的最低成本的方法通常是建造小规模的工程。例如，在洼地收集雨水，然后将其抽调至附近的农田。

Pakistan derives about a fifth of its output from agriculture, and much of its most productive cropland is submerged or turned to the bog.

巴基斯坦五分之一的产出来自于农业，但其高产量农田中已有许多被淹没或变成了沼泽。

Most of the villagers survive off tiny plots of cropland.

大多数村民靠小块农地产出聊以为生。