English Dictionary

river basin

名詞

(geography) An extent of land where water from rain or snow melt drains downhill into a river or series of rivers.

日本語の意味

流域（雨や雪解け水が河川や一連の河川に流れ込む地域） / 集水域（河川への水の供給源を成す土地）

The conservation group organized clean-up efforts across the river basin after the heavy rains.

保全団体は大雨の後、流域全体で清掃活動を組織した。

意味（1）

(geography) An extent of land where water from rain or snow melt drains downhill into a river or series of rivers.

river basins （ plural ）