Each child in Heaven's playground knows each other child by name.
They choose up sides as all take part in some exciting game
Like Hide=and=Seek, Red Rover, Cops and Robbers, Pris'ner's Base.
Our Lord is glad to referee their every game and race.
[John Bernard Kelly, “Heaven is a Circus,” 1900]
英语中有许多名词cop, 有些是古旧的或过时的, 许多名词与古英语cop“top, summit” 有或多或少的联系, 这与 cup (n.) 的来源有关.