There's nothing that it's like to be a ball point pen.

变成圆珠笔不会怎么样。

I need two boxes of company letterhead, one box of ball point pens, and a box of envelopes.

我需要两盒公司信笺，一盒圆珠笔和一盒信封。

Ball point pens with their caps off.

圆珠笔不盖帽。

It follows the trajectory gravity laid out for it eventually reaching a point where it starts coming back down, at which point the air forces are pushing up against it and the ball points against them.

它遵循重力为它设定的轨迹，最终到达一个点，它开始下降，在这个点，空气向上推它，球指向它们。