干线的英文：
main road
primary route
- Arterial roads,ie important main roads
(道路的)干线. - They paved the trunk line of a railroad.
他们铺设了铁路的干线。 - cable - and - trunk schematic
【电】电缆和干线简图 - A new road would be needed to link up with the main road.
需要修一条新路与干线相连。 - Major commuter arteries were choked with stalled traffic.
主要的交通干线都挤满了堵塞的车辆. - You can regain the main road by turning left two miles ahead
你在前面两英里处左转，既可回到公路干线。 - radial symmetry; a starlike or stellate arrangement of petals; many cities show a radial pattern of main highways.
径向对称；星形的花瓣或似星的排列；许多城市的干线公路呈放射状模式。
adj. 主要的；全力的，尽力的
n. 总管道，总线；干线，电力网，电源；体力
- by (main) force
用蛮力, 全靠气力; 以最大的力气 - main gate lodge
大闸区；大闸门房；大闸传达室 - This is the main road into town.
这是进城的主要道路。
n. 马路，公路；手段
v. （狗）沿臭迹追逐（猎物）
adj. 巡回的
- An accident at the intersection of North Road and Lemsford Road
在北路与莱姆斯福特路交叉口发生的事故 - This road is one of the main arterial roads through the city.
该道路是该城市的主干道之一。 - Road(abbr Rd)',in names of roads,esp in towns
Road缩写Rd,用于道路的名称,尤用于城镇
adj. 初级的；基本的；最早的，原始的；原生的；首要的，主要的
n.，首选；候选人初选会；预选；原色
- primary feather
初级飞羽 - A primary feather of a bird.
翅前羽鸟的初级飞羽 - The Democratic primary was held this month.
民主党候选人初选于本月举行。
