This year's drought has made planting crops impossible for many farmers - even a hardy crop such as cotton, that needs little water.

今年的干旱使农民的许多庄稼没有收成——甚至包括一些不太需要水的耐寒作物如棉花。

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Salt in the soil has always made it impossible to grow crops.

土壤中的盐分总是使作物无法生长。

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Celery has no protective skin, which makes it almost impossible to wash off the chemicals that are used on conventional crops.

芹菜没有作为保护层的表皮，这使得它几乎不可能洗刷掉用在常规的作物上的化学物质。

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Eventually they hope to see crops worldwide grown on land which was previously thought difficult or even impossible to farm.

BBC: GM plant battles salt