Will the violin cocoon if it is played for a long time?

Although you exercise your fingers, you can't make them slim ~

Cocoons are normal. As long as you practice hard, you will grow cocoons, but if this person plays the piano with great care and skill, then his cocoons are soft and elastic, not hard.

Don't worry, it will hurt a little at first, but it won't matter after 5 or 6 years.

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C#, what does the signature in the power of attorney mean?

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How to write English signature?

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Liang Jiaxin's English name

A digital certificate can be used for digital signature, but it cannot.

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