✔ 最佳答案
We are inventors
Super ball-point pen
This super ball-point pen has already altered a liquid, eraser, meter, pencil, that
certainly still has a ball-point pen!!!This pen convenience a lot of students, because this
pen gathered various stationeries, they examined, usually forgetting to bring a stationery
while testing, as long as bring this pen, not afraid is called down by the teacher for
what don't bring a stationery!
This pen uses the same kind of method usage with other ball-point pens, so the
students not afraid not understood to use this super ball-point pen!