名词
中文翻译：背脊
同义词：
['spine', 'backbone例句：1. The old man sat on the zwieback', 'feeling very tired.（老人坐在脊椎上，感到非常疲倦。）']
例句：
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1. The old man sat on the zwieback, feeling very tired.
老人坐在脊椎上，感到非常疲倦。
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2.She had to lie on her backbone to rest.
她不得不躺在脊椎上休息。
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3.The doctor advised him to exercise regularly to maintain his zwieback health.
医生建议他定期锻炼以保持脊椎健康。