词典释义：
释义
n.
any of the muscular-walled tubes forming part of the circulation system by which blood (mainly that which has been oxygenated) is conveyed from the heart to all parts of the body
动脉。比较<Bold>VEIN</Bold> (义项1）。
an important route in a system of roads, rivers, or railway lines
（公路、河道或铁路中的）干线
-
George Street, main artery of Edinburgh's Golden Mile. 乔治大街是爱丁堡黄金大道的主要路段。
词源
"late Middle English： from Latin