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to abandon; to throw away; to discard; to forsake
その革命家は古い慣習を捨て去った。
The revolutionary leader abandoned all the old customs.
故郷を捨て去って、彼は都会へ出た。
Forsaking his hometown, he went to the city.
社会が進歩するためには、古い価値観を捨て去るべきだ。
For society to progress, outdated values must be discarded.