This was about 10 years ago, but I never figured it out, and I put it aside when I usually had something, but sometimes I still think about it, and I don't know what it is, what the principle is?

I've been thinking about it, but I've never understood it. Speaking of which, this is a trivial matter, but also a very small thing, that time to go shopping, originally wanted to buy a water cup, saw that people's water cup is very good-looking, I couldn't help but go up and ask the price, in fact, it is not expensive, and at that time, the salesman, the water cup fell heavily to the ground, the water cup bounced up again, the bounce was very high, and at that time I also thought that people's water cups were very good, the quality was very good, or how could it not be broken if it fell to the ground, but could bounce up?

So I bought one, and after I bought it, I used it all the time when I went back, and I didn't feel anything, but I had a chance to watch a movie, and I put the water cup on the seat next to me, and there was no one in the seat next to me, so I kept it until there were two little girls, who also came to see the movie, and their seats were in my seat, and they wanted to pass by me, and they didn't see my water glass, because the lights in the movie theater had long been extinguished, so they touched my water cup to the ground, and the water spilled all over the ground, and at this time, I also heard a bad sound, it was really broken, although they didn't make them lose money at that time, That's it, but I've been thinking about this question in my heart, when this water cup is being sold, it can obviously be dropped, but why did it fall to the ground this time, and I didn't feel it at all, so it broke like this?

I can't figure out why this is happening, maybe other people can explain it, but as for this matter, as for my doubts, I haven't talked to anyone at all, because it's a very simple thing, but the question in my heart has always been there, why is this happening?

Why..........?

"I'm Not Depressed" Chapter 1116 Why is this happening? I am hitting my hand, please wait a moment,

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