劍橋詞典used to refer to something that you do not want to name or say exactly （用於不想明確說(shuō)出的事物）某，某個(gè) If they tell you to arrive at such and such a time , just get there a couple of minutes early. 如果他們告訴你要在某個(gè)時(shí)間到，就早到幾分鍾。 返回 such and such