Selection of watermelon

On the morning of May 15th, 2019, the sunny summer arrived. I was eating a slice of watermelon on a hot day. I walked down the street and covered the green watermelon. Today, my mother took me out of school, ready to buy a watermelon to go home and give me a solution.
How do you choose a red and sweet watermelon? Let me teach you two tricks, hey, I learned from the newspaper, want to learn? Then I will start to teach you.

Look at the small circle underneath the watermelon. The smaller it is, the sweeter it is. If it is big underneath, the thicker the skin, the harder it is. You can also look at its pattern, the more neat and sweet, but it is best to have a dark color. If it is white, it is not sweet. You can also look at the top bar. The more straight it is, the less sweet it is. If it is curled up, it is sweet. You can also pat it. It can only be flicked with your fingers. If the sound of "Bu Bu" is good. melon. You can also end it, the raw melon is rich in water, very heavy, ripe melon, the meat is thin and brittle and very slack, so the body of the melon is lighter.
Do you know how to choose watermelon? These methods are all able to choose the sweetest melon, will you?

Second National Primary School of Qingxiu District, Nanning, Guangxi: Huang Rucan