帮忙翻译一句英文Why should we not mark where we are when we pass a f

帮忙翻译一句英文
Why should we not mark where we are when we pass a familiar,though unnamed person?
麻烦各位,告诉我这句话的意思．
谢谢～

从网上查到,这句话来自这篇完形填空
We may look at the world around us,but somehow we manage not to see it until whatever we've become used to suddenly disappears.36 ,for example,the neatly-dressed woman I
37 to see —or look at — on my way to work each morning.
For three years,no matter 38 the weather was like,she was always waiting at the bus stop around 8:O0 am.On 39 days,she wore heavy clothes and a pair of woolen gloves.Summertime 40 out neat,belted cotton dresses and a hat pulled low over her sunglasses.__41 ,she was an ordinary working woman.Of course,I 42 all this only after she was seen no more.It was then that I realized how 43 I expected to see her each morning.You might say I 44 her.
“Did she have an accident?Something 45 ” I thought to myself about her 46 .Now that she was gone,I felt I had 47 her.I began to realize that part of our 48 life probably includes such chance meetings with familiar 49 :the milkman you see at dawn,the woman who 50 walks her dog along the street every morning,the twin brothers you see at the library.Such people are 51 markers in our byes.They add weight to our 52 of place and belonging.
Think about it.53 ,while walking to work,we mark where we are by 54 a certain building,why should we not mark where we are when we pass a familiar,though 55 ,person?
这篇文章说我们每天都会遇到很多熟悉的陌生人.这些人都应该在我们的生活中留下一些痕迹,他们增加了我们对这个地方的归属感.
当我们上班的时候,我们通过某个大楼来标记我们在哪里.当我们遇见某个不熟悉的陌生人时,为什么我们不能拿他作为一个标记呢?
这里的标记指的是对某个地方的归属感.比如,见到每天遛狗的人就知道我在哪里了.
不知道你名不明白,只可意会啊～