floodplain

'flʌdplein

托福

n. a low plain adjacent to a river that is formed chiefly of river sediment and is subject to flooding

n. 泛滥平原

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使用频率

flood 意为“洪水”，plain 意为“平原”。合起来可以理解为“洪水淹没的平原”，即洪泛区。

例句

1. The floodplain was covered with water after the heavy rain.

大雨过后，洪泛区被水淹没了。

2. Farmers often use the rich soil of the floodplain to grow crops.

农民们常常利用洪泛区肥沃的土壤种植农作物。

3. The floodplain is an important habitat for many wildlife species.

洪泛区是许多野生动物物种的重要栖息地。