back /bæk/ n. 脊柱;脊梁骨点击收听音频跟读 ↓↓↓ ↓↓↓ ↓↓↓
英语解释:She broke her back in a riding accident.
她在一次骑马事故中摔断了脊梁骨。
the row of bones in the middle of the back 脊柱;脊梁骨