"If you have unfinished business, then you should finish it at any cost."
"You should finish what you started whether you like it or not."
"If you have unfinished business, then you should finish it at any cost."
"if ~ then ~" 「〜なら〜」
"you have unfinished business" 「未練が残る」
"you should finish it" 「やり遂げるべきだ」
"at any cost" 「是が否でも」
"You should finish what you started whether you like it or not."
"You should finish ~" 「〜やり遂げるべきだ」
"what you started" 「始まったこと」・「未練が残る」
"whether you like it or not" 「是が否でも」