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1·It is the trade center of an irrigated farming area.

是灌溉农业区的商业中心。

2·The reason water matters so much is that irrigated farming is so productive.

水之所以这么重要的原因是，灌溉的田地产量高。 虽然只占世界总耕地的五分之一，但是生产了世界粮食的五分之四。

3·A city of central California southeast of Modesto. It is the center of an irrigated farming region. Population, 42,198.

美国加利福尼亚州中部一城市，位于莫德·斯托东南。它是一个灌溉农业区的中心。人口42,198。

4·A city of central California west-northwest of Merced. It is a commercial center in an irrigated farming area. Population, 22,282.

美国加利福尼亚州中部一城市，位于默塞德西北偏西。它是农业灌溉区的商业中心。人口22,282。

5·A city of north-central Utah north-northwest of Provo. It is a manufacturing center in an irrigated farming area. Population, '7, 5'.

美国犹他州中北部城市，位于普罗沃的西北偏北。它是灌溉农业区的制造中心。人口' 7,5 '。

6·The Zambeze valley also includes 5.5 million hectares of land that could be used for irrigated agriculture, cattle farming, silviculture, ecotourism and other activities.

赞比西河谷有550万公顷土地可用于农业、畜牧、造林、生态旅游及其它活动。