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heavy rain; torrential rainfall; downpour
大雨で川が氾濫する危険性がある。
There is a risk of the river flooding due to heavy rain.
大雨警報が発令されたので外出を控えた。
A heavy rain warning was issued, so I refrained from going out.
三日間続いた大雨が土砂崩れを引き起こした。
The heavy rain that lasted three days caused a landslide.