- [countable]
the row of small bones that are connected together down the middle of the back 脊梁骨;脊柱 synonym spineTopics Bodyb1 - [singular]
the most important part of a system, an organization, etc. that gives it support and strength 支柱;骨干;基础 - [uncountable]
the strength of character that you need to do something difficult 毅力;骨气