c. 1600, "a taking of sides in a conflict or debate," verbal noun from side. First attested 1825 in the railroad sense; 1829, American English, in the architectural sense of "boarding on the sides of a building."
权威例句
1. There has been much speculation that America might be siding with the rebels.
有很多猜测认为美国会支持叛乱者。
2. A train of antiquated coaches was waiting for us at the siding.
一列陈旧的火车在侧线上等着我们.
3. I've built this siding four times.
我设计这条支线已有四次了.
4. The train was switched into a siding.
这列火车已转辙至傍轨.
5. Our orders were to entrain at 9:15 in the morning at a nearby siding.