Write an essay about what you want to invent

Scientists nowadays are so good at inventing interesting things! They are constantly discovering and inventing. One of them is the pen.

What's so special about the pen? Some people will ask like this, I think the person with this question must be a person with a curious heart, right? I can do this question!

Don't look at the pen is very simple to write, but it contains a lot of special functions, different from other pens, if you want to know, then take a look at my introduction!

The material of this pen is very beautiful and special. Because the material used in this pen is crystal crystals. Some people ask again:

What, what? Crystals in crystals? Can also be used to make pens?

That's ridiculous, isn't it? "Hey, hey! Actually, it's not ridiculous at all.

It's just that you're a little surprised. This pen has been carefully processed to obtain this delicate pen.

Don't underestimate this pen, it's the most advanced pen and it has a lot of features! Hee-hee!

This pen is a "teacher", why is it a "teacher"? That's in its function! For example, one day, you are reading English and it is on the side.

It can also be bigger or smaller, bigger: it can become as big as a building. Smaller: Becomes as small as an ant.

The pen also has a beautiful computer. It's very advanced, isn't it? You don't want to use it in math class, if you do. It will automatically not turn on for a week, it is really serious, pay attention.

If you get lost in the desert, take it out and it will help you find your way home, as well as find plenty of water in the desert.

It can also be turned into a boat, although it cannot cross the sea. However, this small boat can cross the sea without encountering all kinds of dangers.

Therefore, this pen has a very nickname! Little teacher, tape recorder ......

However, this pen has not yet been produced, and I think I will invent it in the future.

Swish! Twenty years later, I'm already a famous scientist. A lot of useful things have been invented. For example: "joke telling trash can", "singing piggy bank" and many more. He also participated in various competitions and won many awards.

Tell jokes trash cans"It is the most loved by people. You put the garbage in the joke bin, and it tells you jokes, often with you laughing back and forth. The children love to take out the garbage in the trash can, not only laughing so hard that their stomachs hurt, but also telling these jokes to other children.

In this way, people who don't like to dump their garbage in the trash can like to throw their trash in the trash. Sanitation has also been radically transformed.

Because I designed an electric trash can, the same as the sensor installed, the garbage is thrown in the same pocket, the sensor will start the tape recorder, ** a pre-recorded joke. Different trash cans have different jokes.

This one electron also changes people's bad habits. Am I amazing 20 years from now?

The "Singing Piggy Bank" is also very magical. It is a box-shaped box with two buttons on it. One is heart-shaped and the other is triangular.

If you press the heart-shaped one, it will change color. Whichever color you like, you can tune it in. If you press the triangular one, it will change shape, there are puppy shapes, house shapes, there are countless shapes, and you can adjust to whichever shape you like.

You put a coin. It just sings it, and it sings very well.

What do you think? I'm okay with my invention. Hopefully in 20 years there really will be these two things.