Think of wetlands as a giant sponge: the earth soaks up a lot of this water that's continually flooding the surface, which increases the amount of water below.

把湿地想象成一块巨大的海绵：地球吸收大量的不断涌向地表的，增加了地表以下水量的这些水。

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Following the Mama Bongisa advice, they mounded the earth to get as much surface area as possible and to prevent Kinshasa's harsh rains from flooding the beds.

按妈妈促进会的建议，他们堆起土，尽可能地扩大面积并防止金沙萨的暴雨冲垮菜地。

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Wild flooding is inefficient in use of water and labor, but it irrigates land that can't be managed by other methods of surface irrigation.

漫灌的用水效率和劳动效率都是很低的，但它能用来灌溉那些不能采用其他地面灌水方法灌溉的土地。

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Heavy rain has also caused surface flooding in parts of Devon, including the A396 between Bickleigh and Rewe.

BBC: More snow is forecast overnight in Devon

Forecasters have also warned of the risk of "localised surface water flooding and possible disruption to travel" in the worst hit areas.

BBC: Saturday's record temperatures not beaten

Plymouth City Council said it had crews out clearing drains and dealing with surface water flooding after a large number of calls from people across the city.

BBC: Devon and Cornwall rail lines 'expected to reopen' soon