branch lines

基本解釋

This air line operates five main lines and twenty branch lines.
這家航空公司經(jīng)營(yíng)五條主干線和二十條支線。
This airline operates five main lines and dozens of branch lines.
這家航空公司經(jīng)營(yíng)五條主干線和十幾條支線。
They could close passenger and branch lines, as long as they preserved access for Amtrak services. They were allowed to sell lossmaking lines to new short-haul railroads.
只要保留美國(guó)鐵路客運(yùn)對(duì)其鐵路的使用權(quán)，他們可以停運(yùn)某趟旅客列車和其他支線列車，允許將虧損的線路賣給新成立的短程鐵路運(yùn)輸公司。

There are wider benefits to the railway, such as social inclusion, to justify the existence of branch lines.
ECONOMIST: Pakistan's militants