He's slaphappy in his approach to rules and regulations.他视规章制度如儿戏。He treated murder as a joke with a tang to it.他把谋害人命当作一种刺激性的儿戏。Marriage is just a game to them.婚姻对他们来讲不过是儿戏。You don't take anything seriously, do you? It's all one big joke to you.你拿什么事都不当真,是吗?对你来说,什么都是儿戏。