無為に費えた年月むいについえたとしつき

years spent idly

無い事にはないことには

unless (you do something)

何時に無いいつにない

unusual; unwonted; uncharacteristic

無にするむにする

to bring to naught; to bring to nought; to abuse (esp. another's kindness); to neutralize (a person's efforts); to waste

無い内にないうちに

before it becomes (verb); before (an undesirable thing occurs)

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