such and such

剑桥词典

used to refer to something that you do not want to name or say exactly
（用于不想明确说出的事物）某，某个
If they tell you to arrive at such and such a time , just get there a couple of minutes early. 如果他们告诉你要在某个时间到，就早到几分钟。 返回 such and such