Who's 50 Cents

Jacky: I found 50 cents on the sidewalk in front of school.Tommy: I think it's mine. I dropped 50 cents there today and couldn't find it.Jacky: But what I found was two quarters.Tommy: Then I'm sure it's mine. It probably broke when it hit the　sidewalk.
　　　
谁的50分（钱）？

杰克：我在学校门前的人行道上拣了50分。汤米：我想那是我的，今天我在那儿掉了50分，找不到了。杰克：但是我拣的是两个两毛五的呀。汤米：那就更是我的了。因为钱在掉到地上的时候可能摔两半了。