" Sometimes their tables and chairs were nothing but long, narrow boards laid across other boards."

有时他们的桌子和椅子不过是又长又窄的板子相互垒在一起而已。

The lane is made of 39 narrow boards that bowlers number for reference.

球道由 39 块窄板组成， 投球手编号以供参考。

Basically, it's a long, narrow board in the middle of which is something which in physics we would call a " fulcrum" (fulcrum).

基本上，它是一块又长又窄的板，板的中间是物理学中我们称之为“支点” （fulcrum）的东西。

Was there a hint of complicity in them, a hint of amusement at the odd game they were playing across the narrow green board?

他们有没有同谋的迹象，他们在狭窄的绿板上玩的奇怪游戏的迹象？