But as the paper moved from side to side under the pen point, its movement would be recorded in ink upon its surface.

由于纸在笔下来回运动，纸的表面就会用墨水记录下地板运动的情况。

He examines his pen point, the curtains, his inkstand, to see if perhaps ideas may not be had from these.

他检查了他的笔尖、窗帘、墨水瓶， 看看是否可以从这些东西中得到灵感。

Whereas " to be short of" and " to lack" could be used for things like energy, for example, which you don't count the same way you would pens, points, or people.

而“to be short of” 和“to lack” 可以用于能量之类的东西，例如，你计算笔、点或人的方式不同。