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Why don't Koreans put a drip on the back of their hands?
Dude, you are so talented. You also study this.

In fact, I think you can play anywhere. Some people can see tendons on the back of their hands, but because some people are too fat, it is difficult to find tendons on the back of their hands. Pointing the tendon to the inside of their elbow is more obvious. I think that's it. There should be no national boundaries.