红线的英文：
red line
Boundary lines of roads
道路红线
Redline 6300 rpm
红线转速6300rpm
Red lines on the map correspond to major roads.
地图上的红线相当于主要道路。
Rainbow trout (black-spotted trout with two reddish bands from nose to tail).
虹鳟鱼（身上有黑点，从鼻到尾有两条红线）。
Use the red line to position the task.
使用红线定位该任务。
It looks to me as if you two, far from growing nearer, are snapping the bonds that hold you together, one after another
看起来，你们俩不但不是日益亲近，反而是在一道一道地掐断月老把你们系在一起的红线。
adj. 红色的；褐红色的；深红的；布满血丝的；支持左翼政治观点的；社会党的
n. 赤字；亏空
Red got his nickname for his red hair.
“红毛”的绰号源于他的红头发。
The sun will swell into a red giant.
太阳将膨胀为一颗红巨星。
red lake C pigment
色淀Ｃ颜料红
Iron oxide red pigments
GB/T1863-1989氧化铁红颜料
Roll out the red carpet.
热烈欢迎。
n. 线条，界线，路线；条纹；排；铁路线；生产线；台词；态度；防线；前线
v. 用线标出，划线于；使布满纹络；加衬里于；排队，排列成行
This is a lined trunk.
这是一个有衬里的箱子。
They are politically in line.
他们在政治上意见一致。
On a map there are horizontal lines and vertical lines.
在地图上有水平的线和垂直的线。
To inscribe(a line or lines)with a pencil or other marking implement.
画用铅笔或其它做标记的器具刻线
The new proposal is in line with our general line.
新建议和我们总的原则是一致的。