Five hundred dollars, please. And could you give me ten dollar in small change?
请换500美元。再另外能否给我10元的小面额零钱?
An even harder situation is to be on the platform in good time for a train and still to see it go off without you.
更难堪的情况是虽然及时赶到站台上,却眼睁睁地看着那趟火车启动,把你抛下。