such and such

剑桥词典

used to refer to something that you do not want to name or say exactly
（用於不想明確說出的事物）某，某個
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時間到，就早到幾分鍾。 返回 such and such