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关注:1
2013-05-23 12:21
求翻译:• Movement: Bones serve as levers to which muscles are attached. When the muscles contract, the bones acting as levers produce movement.是什么意思? 待解决
悬赏分:1
- 离问题结束还有
• Movement: Bones serve as levers to which muscles are attached. When the muscles contract, the bones acting as levers produce movement.
问题补充: |
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