medial border of foot

例句：

1. 1. The medial border of the footis where the tendons attach to thebones.
   脚的中线是肌腱附着在骨头上的地方。
2. 2. The medial border of the lungs is where the bronchus branches off from the trachea.
   肺部的中线是支气管从气管分支的地方。
3. 3. The medial border ofthe heart is where the aortadivides into the two main arteries.
   心脏的中线是主动脉分成两条主动脉的地方。