a central cohesive source of support and stability同义词:anchor, mainstay, keystone, linchpin, lynchpin
fortitude and determination同义词:grit, guts, moxie, sand, gumption
the series of vertebrae forming the axis of the skeleton and protecting the spinal cord同义词:spinal column, vertebral column, spine, back, rachis
the part of a book's cover that encloses the inner side of the book's pages and that faces outward when the book is shelved同义词:spine
the part of a network that connects other networks together
例句
The backbone is an articulate structure.脊椎骨是一种关节相连的结构。
He has no backbone.他没有骨气。
These men are the backbone of the country.这些人是国家的中坚力量。
详细解释
back.bone n.(名词)The vertebrate spine or spinal column.脊骨:脊椎动物的脊椎或脊柱Something, such as the keel of a ship, that resembles a backbone in appearance or position.脊骨状物:在外观或位置上象脊柱的某些东西,如船的龙骨A main support or major sustaining factor:骨干,支柱:主要的支撑或重要的支撑因素:例句:the backbone of a thesis.论文的主旨 Strength of character; determination:骨气,毅力:性格上的勇气;决心:例句:displayed grit and backbone in facing adversity.面对逆境和苦难时显示出刚毅和勇气 【引伸】 back.boned. adj.(形容词)