至少，你应该道歉。

___At ___the ___very ___least, you should apologize.

我们至少应该赚500英镑。

We should earn £500 ___at ___the ___very ___least.

因此，我相信你会同意，至少我应该得到一封解释信和一笔可观的退款。

Thus, I trust you will agree that ___at ___the ___very ___least I deserve a letter of explanation from you and a substantial refund of my money.