backbone
翻译
脊柱, 骨干, 毅力
例句
The doctor examined his backbone.
医生检查了他的脊柱。
She has the backbone to stand up for her beliefs.
她有坚持自己信念的骨气。
Small businesses are the backbone of the economy.
小企业是经济的支柱。
语法模式
((某事))的支柱 the backbone of (sth.) Small businesses are the backbone of the economy.
有骨气做((某事)) to have the backbone to do (sth.) She has the backbone to stand up for her beliefs.
近义词
同义词: spine (脊柱), courage (勇气), core (核心)
词源
由“back”（背）和“bone”（骨头）组成的复合词，字面意思是背部的骨头。
记忆技巧
想象脊柱支撑着整个身体。这个画面既适用于字面意思，也适用于“主要支撑”或“勇气”等比喻义。