A club is a set of people who have signed up to share one thing. In a book club, the thing they share is books. Hold that picture and both meanings fall out of it: a handful of people sharing the same book and their opinions of it, or a much larger set of members sharing one supplier who sends them books at a members-only price. The word says nothing about which; it only says that books are what holds the membership together.
club 可以想成「一群報了名、共享同一件事的人」。在 book club 裡，大家共享的那件事是書。把這個畫面握住，兩個意思就都長得出來：可能是幾個人共享同一本書和彼此的想法；也可能是一大群會員共享同一個供書管道，用只有會員才有的價錢拿書。這個詞本身不說是哪一種，它只說「把這群人綁在一起的是書」。
登入就可以看每一支怎麼連回核心畫面。