On the village green, where you pick up sides and no feeling of local patriotism is involved, it is possible to play simply for the fun and exercise:

在乡间的草坪上，当你随意组成两个队，并且不涉及任何地方情绪时，那才可能是单纯的为了娱乐和锻炼而进行比赛。

and we have to lower into the ground and haul out of the ground great lengths of drill pipe which are rotated by an engine at the top and are fitted with a cutting bit at the bottom.

我们必须把很长的钻杆一节节地钻入地下，然后再从地下拉出来。钻杆顶部安装的发动机带动钻杆旋转，它的底部装有钻头。

He no sooner recovers his equilibrium than the next porpoise comes along and hits him another crack.

海龟刚恢复平衡，第二只海豚又冲过来猛击一下。

he identifies himself with its centre of gravity, its mass, its weight;

他把自身和物体重心、质量、重量融为一体。

Today we tend to go to the other extreme,

虽然现在我们倾向于走向另一个极端，

Normal people tend to forget this process unless and until they are reminded of it.

衰老的过程，不经提起，正常人容易忘记；一经提醒，才会记起。