He acts as if he doesn't have a care in the world. 他表现得好像什么事都不操心似的。The judge told him to have a care what he said in court.法官叫他注意在法庭上的陈述。He puffed away on his pipe as if he didn't have a care in the world.他抽着烟斗,似乎什么都不担心。She acts as if she doesn't have a care in the world. 她表现得似乎对什么都不在乎。