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渠等开放域儿童尤其危险。

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

海平面带来了更多海。渠变咸了。随着气温，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.

渠汇聚成一条主渠， 沿着山谷中央流淌，两侧则筑有齐胸高围墙。