backbone [ˈbækbəʊn]

以下由轻松背单词网站提供

n.脊骨，脊柱，骨干；刚毅，骨气

the line of bones down the centre of the back that provides support for the body ; the spine

The Chinese people have backbone. 中国人民有骨气。
The backbone is an articulate structure. 脊椎骨是一种关节相连的结构。