backbond

例句：

1. 1.She had a backbone of steel and refused to give in.
   她有钢铁般的脊梁骨，拒绝屈服。
2. 2. He was sore all over from his backbond.
   他的背部疼痛，全身都疼。
3. 3.The doctor prescribed medication for her backbond.
   医生给她开了药来治疗背部疼痛。