We may come at another time.（英译中)

We must just make the best of things as they come along.（英译中)

At the time when technology means ever more harmful carbon in the air we breathe, we need these forests now more than ever.（英译中)

Female sheep produce one or two lambs at a time.（英译中)

If only problems would come one at a time!（英译中)

You may open a current account at a bank.（英译中)

I think we may learn much from it.（英译中)