点击下方单词,选择对的这个单词
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1. 脊椎;脊柱Your spinal column is your spine.
1. the series of vertebrae forming the axis of the skeleton and protecting the spinal cord
e.g. the fall broke his back
Synonym: vertebral columnspinebackbonebackrachis
多通过句子记忆单词，而不是单独死记硬背。
