If I am a scientist

If I were a scientist, I wanted to invent a machine that sucked white garbage into the machine. After a while, the machine's exit would come out with a new garbage bag, which would save the garbage bag and would not pollute our environment.

If I am a scientist, I want to invent a pen. As long as you write the wrong word, it will be called "wrong, wrong," so that you can get rid of the habit of writing typos.

If I were a scientist, I wanted to invent a blackboard eraser. As soon as it touched the blackboard, the words on the blackboard would disappear immediately and the teacher would never be polluted by dust.

If I am a scientist, I want to invent a colored pen. As long as it is lightly on the white paper, the white paper will become another color, and the students will draw the painting very quickly.

I still have a lot of inventions. If I really become a scientist, I will do my best to bring more convenience to mankind and benefit mankind for the benefit of the earth.