this and that이것저것(informal) various unspecified things. ex) "they stayed up chatting about this and that"drop the ball실수하다 (informal) make a mistake; mishandle things.sleuth탐정, 형사 a person who investigates crimes; a detective.spook (사람·동물을) 겁먹게 하다, 겁먹다(informal) frighten; unnerve."they spooked a couple of grizzly bears"cold case 미제사건ex) Her biological mother received a shocking letter that took ..