rib for base

例句：

1. 1.He was lying on the ground, his ribs protruding from his skin.
   他躺在地上，肋骨从皮肤里凸出来。
2. 2. The doctor examined her ribs to determine if she had a fracture.
   医生检查了她的肋骨以确定她是否有骨折。
3. 3. She was recovering from a broken rib and needed rest.
   她正在从肋骨骨折中恢复，需要休息。