流域commonJLPT N2
Noun
Noun
1.drainage basin; catchment basin; river basin; watershed
Wikipedia definition
2.Drainage basin
Example sentences
激しい雨がその流域に洪水をもたらした。
The heavy rain brought floods in the valley.
ダムが決壊し大量の水が下流域に放出された。
The dam gave way and sent a great flush of water down the valley.
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