The United Nations agency also found that boys and girls living near open water sources, such as ponds and irrigation ditches, are especially at risk.

该机构还发现住所周围有池塘或灌溉水渠等开放水域的儿童尤其危险。

Rising sea levels bring in more seawater. Irrigation canals turn salty. The problem is only going to get worse as temperatures rise.

了更多的水。灌溉水渠变咸了。随着气温的，这个问题只会变得更糟。

The irrigation streams ran together into a main channel down the center of the valley, and this was enclosed on either side by a wall breast-high.

灌溉水渠汇聚成一条主渠， 沿着山谷中央流淌，两侧则筑有齐胸高的围墙。