英语句子

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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A ligament is a strong band of tissue that connects bones to other bones.韧带是一种连接骨头和骨头的结实组织带。

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与股骨相连的肌肉能帮你的腿向前、向后和向侧边活动。Muscles attached to the femur help your leg move forward, backward, and to the side.

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指骨帮助手指弯曲，这样你才能抓住、写字或捡东西。The phalanges help your fingers bend so you can hold, write, or pick things up.

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每一根掌骨支撑着一根手指，当你抓东西或握东西时，掌骨能帮助手指活动。Each metacarpal supports one finger and helps it move when you pick up or hold things.

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每只手腕里有八块腕骨，它们紧密地拼合在一起。There are eight carpals in each wrist, and they fit closely together like a puzzle.

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桡骨是前臂里的一块长骨，在靠近大拇指的一侧。The radius is a long bone in your lower arm, on the same side as your thumb.

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尺骨是前臂里的一块长骨，与桡骨相邻。The ulna is a long bone in your lower arm, next to the radius.

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大多数人左右两侧各有十二对肋骨。Most people have twelve pairs of ribs on each side of the body.

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胸骨十分重要，因为它能保护心脏及其后的其他器官。The breastbone is important because it protects the heart and other organs behind it.

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胸骨是一块扁平的骨头，位于你胸部正中间。The sternum is a flat bone in the center of your chest.

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锁骨是肩膀前方一根重要的骨头。The collarbone is an important bone at the front of the shoulder.

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锁骨是一根细长的骨头，位于胸部上方、肋骨之上。The clavicle is a long, thin bone located at the top of the chest, right above the ribs.

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