Chang475 說
10 years ago
Opposing Muscle Groups
• Flexor:
o Example:
• Extensor:
o Example:
掰噗~ 說
10 years ago
你怎麼會這樣想!? (unsure)
Chang475 說
10 years ago
急,有誰知道 :'-(
Sam says
10 years ago
蛤?
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