These activities are the fabric of the friendship. It is a doing relationship in which similarity in interests is the key bond.

这些活动是友谊的结构。这是一种处事关系，其中兴趣相近是关键的纽带。

These activities are the fabric of the friendship; it is a 'doing' relationship in which similarity in interests is the key bond.

这些活动是友谊的基础;这是一种" 实践" 关系，兴趣上的相似性是关键纽带。