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end; conclusion
last; final; latest; most recent
no sooner than; once; right after (often having negative consequences)
最後まで諦めないでください。
Please don't give up until the end.
これが最後のチャンスだ。
This is the last chance.
これが本当に最後のチャンスかもしれない。
This might truly be the last chance.