종이 헬리콥터 실험을 통한 개발단계 성능변동의 이해와 개선

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It ain’t over till it’s over. End relationships that no longer work for you, as you could be spending time in a dead end. Rather head for more meaningful things. You could be missing opportunities while you’re stuck in a meaningless rut, trying to breathe life into something that is long gone.
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Ask yourself: What is one thing I could start doing today to improve the quality of my life? Next