backbone
n. 脊骨，脊柱；支柱，骨干；骨气，毅力；<美>书脊；（聚合分子的）主链；（计算机）主干网
复数 backbones
例句
You might be taking drastic measures and you've got to have the backbone to do that.
你可能在采取极端措施，而且你得有骨气做它。
《柯林斯英汉双解大词典》
They ain't got any backbone.
她们没有骨气。
Primary care should be the backbone of any health care system.
基层医疗应该是任何卫生医疗系统的支柱。
