英语句子

肺是位于胸腔里柔软像海绵的器官，帮助身体从空气中获得氧气。The lung is a soft, spongy organ in the chest that helps the body get oxygen from the air.

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气管是一条将空气从鼻子和嘴巴送到肺部的管道。The trachea is a tube that carries air from the nose and mouth to the lungs.

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关节是身体里两块骨头结合的地方。A joint is a place in the body where two bones meet.

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肌腱是一种把肌肉和骨头连接起来的坚韧组织带。A tendon is a strong band of tissue that connects muscle to bone.

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骨头是人体内部坚硬的部分，用来支撑和构成人体形状。A bone is a hard part inside the body that helps shape and hold us up.

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尾骨（coccyx）是脊柱最末端的一块小骨头。The coccyx is the small bone at the very end of your spine.

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尾骨，英语叫 tailbone 或 coccyx，是脊柱最底部的一小块骨头。The tailbone, also called the coccyx, is a small bone at the very bottom of your spine.

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骶骨是一块位于脊柱底部的大三角形骨头。The sacrum is a large, triangle-shaped bone at the base of your spine.

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人有十二块胸椎骨，这部分是脊柱最长的一段。There are twelve thoracic vertebrae, and they form the longest section of your spine.

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颈椎骨还能保护从大脑到身体的神经。The cervical vertebrae also protect the nerves that pass from your brain to your body.

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膝盖软骨是一种光滑柔软的组织，覆盖在膝盖关节的骨头末端。Cartilage in the knee is a smooth, soft tissue that covers the ends of the bones in your knee joint.

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软骨是一种光滑、有弹性的组织，分布在身体的许多部位。Cartilage is a smooth, rubbery tissue found in many parts of the body.

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脊柱是从背部中间延伸下来的骨骼结构。The spine is a line of bones that runs down the middle of your back.

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趾骨是构成脚趾内部的骨头。The phalanges are the bones found inside your toes.

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胫骨是位于小腿中的一根长骨头。The tibia is a long bone found in the lower part of your leg.

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