1. Good posture results from holding the backbone straight. 好的姿势是保持脊柱直的结果。
2. The college tutors are the backbone of the college student management and the main force necessary for the college development. 高校辅导员是高校学生管理工作的主力军，是高校发展建设不可缺少的重要力量。
3. Everyone has their own country, perhaps in your mind, is a great country it is warm. Yes, in my mind, the motherland is our backbone. 每一个人都有自己的祖国，也许在你们的心中，祖国是伟大的，是温暖的。是的，在我的心中，祖国是我们的支柱。
英英解释
n.
1. a central cohesive source of support and stability
2. fortitude and determination
3. the series of vertebrae forming the axis of the skeleton and protecting the spinal cord
4. the part of a book's cover that encloses the inner side of the book's pages and that faces outward w
5. the part of a network that connects other networks together
