日本語をクリックすると英文が表示されます。まずは自分で英語にしてから答え合わせを。
That decision was our undoing.
I could have done it if I'd really wanted to.
I regret not being more careful.
If only I'd stopped him then.
If you hadn't shown up, I'd have been done for.
Looking back, I pushed myself too hard.
If only I'd just apologized then.
If it had failed, it would have been a disaster.
If only I could turn back time.
Without that experience, I wouldn't be who I am.
There's no point in playing the what-if game.
I should have double-checked, just in case.