n.

1. 【解】動脈
2. （鐵路，公路等的）幹線，要道
   This is the place where the three main arteries of West London traffic meet.

   這是倫敦西區三條主要幹線匯合的地方。

3. 主渠道

n.

1. any of the muscular-walled tubes forming part of the circulation system by which blood is conveyed from the heart to all parts of the body.
2. an important route in a traffic or transport system.