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名词
n. 脊背；脊柱
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line of bones down the back of the body
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Good posture results from holding the backbone straight.
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好的姿势是保持脊柱直的结果。
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名词
n. 主要支持力；主干；中坚分子
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a man support the most important part
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Such men are the backbone of the country.
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这种人才是国家的中坚分子。
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名词
n. 骨气；刚毅
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strength; firmness
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The Chinese people have backbone.
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中国人民是有骨气的。
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