The ground was frozen and a light frost lay over most of the plots, the water tanks and the pond covered with ice.
大地被冰封，大多数小块地里都铺有一层薄霜，水箱和池塘都覆盖着冰。
In nearly all systems it will be necessary to store water in covered tanks between the source and distribution points.
在几乎所有系统里，都必须将水贮存在水源和配给点之间遮盖着的储水池里。
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