急需壹篇英語短作文，關於骨骼的壹些知識，比如怎麽保護骨骼，人體幾塊骨骼，有什麽作用，不用太多，10

The human body a total of 206 pieces of bone, is divided into the skull, torso and four limbs which bone three most. Skeleton has to protect, support, motor function, metabolism, hematopoietic function. We should diet diversity, ensure the balance of nutrition, exercise more, prevent osteoporosis to protect bones. 人體***有206塊骨骼,分為顱骨、軀幹骨和四肢骨3個大部分。骨骼有保護，支持，運動功能，代謝功能，造血功能。 我們應該飲食多樣，保證營養攝入的均衡，要多鍛煉身體，防止骨質疏松來保護骨骼。