这时，他看到在山的另一侧，顺坡而下有一行马蹄印。

Then he saw the marks going down the other side of the mountain.

youdao

拇指背尺侧动脉无紧密伴行的静脉。

The dorsoulnar artery of thumb had no closed veins to accompany with.

youdao

拇指背尺侧动脉无紧密伴行的静脉。

The dorsoulnar artery of thumb had no closed veins to accompany with.

youdao