英语语法分析

The sweater has raveled at the elbow.

这件毛衣的肘部绽线了。

Maintaining such a raveled page is strenuous.

维护这样混乱的页面十分费力。

But one imagines a little string remains tied to each item received, one which when raveled back up leads to the giver. There must be a lot of string around Beijing.

不过想象下一条很细的人际关系线，连接着所有被送出的礼，并能够直接连回到送礼的那个人，北京一定有很多这样的线。