spine

• 指人体的脊柱或脊椎骨；也指物体上尖突的部分（如刺、棘），以及书籍封面的书脊。

A noun referring to the central bony structure of the body, a sharp projection, or the back edge of a book cover.

1. BackboneB1formalmedical

   The series of vertebrae forming the axis of the skeleton and protecting the spinal cord.

   脊柱

   • The doctor examined her spine for any signs of injury.
   • A healthy spine is crucial for good posture.
   • He suffered a fracture in his lower spine after the fall.

   同义词backbonerachisspinal columnvertebral column

2. Sharp projectionB2formal

   Any sharply pointed projection, such as on a plant or animal.

   刺

   • The cactus has sharp spines to protect itself.
   • The hedgehog curled up, exposing its spines.
   • The fish's dorsal spine can be venomous.

   同义词barbneedlepricklequillspikethorn

3. Book partB1formal

   The part of a book's cover that encloses the inner side of the pages and faces outward when shelved.

   书脊

   • The title was printed on the spine of the book.
   • The spine of the old novel was cracked from years of use.
   • She carefully removed the book by its spine.

   同义词back

4. Courage or strengthB2informal

   Figurative use meaning courage, strength, or determination.

   骨气

   • It takes spine to stand up for what you believe in.
   • He showed real spine in the face of adversity.
   • The team lacked the spine to finish the project.

   同义词backbonedeterminationfortitudegritmettlenervepluckresolve

   反义词cowardicefearfulnessspinelessnesstimidityweakness