Ball—point,pens的作文

篇一：unit6 作文

How was the ball-point pen invented? In my opinion, the ball-point pen is one of the most useful inventions. It was invented by an American worker named John Loud in 1888. It was used for writing faster. And it really helps us write faster than the pen. It makes our life easier. And because they are produced in large numbers, the price is usually low. But sometimes the ball-point pens leak(泄漏) and need replacing替換). Ball-point pens are becoming smaller and lighter. All people enjoy using it for writing. So they are widely used in many fields. They are also really useful in our daily life.