4.Everyone knew each other well, except for the new guy Jason, who was the joker in the pack.
除了那个新来家伙贾森,大家彼此都很了解,只有他让捉摸不透。
5.Any of a set of 22 playing cards consisting of a joker plus 21 cards depicting vices, virtues, and elemental forces, used in fortunetelling and as trump in tarok.