marrow nailing

例句：

1. 3.
   比喻
2. 1. The doctor performed a marrow aspiration to determine the cause of her pain.
   医生进行了骨髓穿刺以确定她疼痛的原因。
3. 2. She was able to fix the broken leg with a splint.
   她用夹板固定了骨折的腿。
4. 3. The project is being nailed down by the team's dedication and hard work.
   该项目正由团队的奉献和努力而巩固。