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to spiral down
[phrase form: spiral]
01
急激に落ちる
to rapidly decline
例
The athlete's performance spiraled down due to persistent injuries.
The project's progress spiraled down as unexpected challenges emerged.
The city's air quality started to spiral down as industrial pollution increased.
The student's grades began to spiral down after a series of missed assignments.
The neighborhood's safety spiraled down as crime rates continued to rise.
