medial leg

例句：

1. 1. The medial artery is responsible for delivering blood to the heart.
   中央动脉负责将血液输送到心脏。
2. 2.The runner ran the race in the middle of the pack.
   跑步者在队伍中处于中游位置。
3. 3. The median stripe on a soccer field is used to divide the field into two halves.
   足球场中间的一条线用于将场地分为两半。