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Thread: Do human beings have a limit of physical abilities?
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[quote=KEVIN0518,313744]Another factor is the High Technology. One hundread years ago, Adidas and other sports companies weren't born yet. With the development of HT, they tradually use HT to produce sports suits, shoes etc. With these sports products, the athletes can run faster, jump higher and break more records. Take Li Na's tennis shoes for example, they are half as heavy as other tennis players' shoes. It is said that its weight equals a banana's skin.[/quote]
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