backbone
单词辨析：
指即使遇到困难也能够坚持到底的顽强意志力。
He shows great determination to win the champion.
他表现出很大的决心要赢得冠军。
Her determination helped her survive the ordeal.
她的坚韧帮助她渡过了难关。
指做成难做之事所需的意志力或品质。
He lacks backbone.
他没有骨气。
She has never met a boy with so much backbone.
她从未见过这么有毅力的男孩。
I really admire your courage and backbone.
我真的很佩服你的勇气和毅力。
He doesn't have the backbone to be a good climber.
他不具备一个优秀登山运动员应有的毅力。
相关例句：
However, some vendors and users contend that shared fast Ethernet is appropriate for server and backbone connections.
但是，一些供应商和用户认为，共享式快速以太网适合服务器和主干网的连接。
The student cadre is the backbone and leader among students and the primary assistant for the instructor.
学生干部是学生中的骨干和带头人，是辅导员的得力助手。
My parents are my backbone.
我的父母是我的骨干。
The Chinese people have backbone.
中国人民有骨气。
Relational database servers build the information backbone for many companies today.
目前，关系数据库服务器为许多公司建立了信息主干。
To meet this challenge, automation and process have become the backbone of distinguished service levels.
为了迎接这项挑战，自动化和业务程序已经成为杰出服务水平的支柱。