1. 橫桿；欄桿；扶手
    A rail is a horizontal bar attached to posts or fixed round the edge of something as a fence or support.

    e.g. They had to walk across an emergency footbridge, holding onto a rope that served as a rail...
           他們必須握著一條繩索充當(dāng)扶手穿過一條緊急人行天橋。
    e.g. She gripped the hand rail in the lift.
           她緊緊抓著電梯里的扶手。

2. （掛物用的）橫桿，橫檔
    A rail is a horizontal bar that you hang things on.

    e.g. ...frocks hanging from a rail...
           掛在橫桿上的連衣裙
    e.g. This pair of curtains will fit a rail up to 7ft 6in wide.
           這副窗簾需要用7.5英尺寬的橫桿掛起。

3. 鐵軌
    Rails are the steel bars which trains run on.

    e.g. The train left the rails but somehow forced its way back onto the line.
           火車脫軌了，但總算設(shè)法回到了原來的軌道上。

4. 乘火車（旅行）；用火車（運(yùn)送）
    If you travel or send something by rail, you travel or send it on a train.

    e.g. The president traveled by rail to his home town.
           總統(tǒng)坐火車回到了他的家鄉(xiāng)。
    e.g. ...the electric rail link between Manchester and Sheffield.
           曼徹斯特和謝菲爾德之間的電氣化鐵路線

5. （大聲）責(zé)罵，呵斥
    If you rail against something, you criticize it loudly and angrily.

    e.g. He railed against hypocrisy and greed...
           他痛斥偽善和貪婪的行為。
    e.g. I'd cursed him and railed at him.
           我曾詛咒并且大聲責(zé)罵過他。

6. see also: railing

7. 復(fù)蘇；重振
    If something is back on the rails, it is beginning to be successful again after a period when it almost failed.

    e.g. They are keen to get the negotiating process back on the rails...
           他們熱切希望使談判重新步入正軌。
    e.g. Her career is back on the rails.
           她的事業(yè)得以重振。

8. （行為）越軌，不規(guī)矩
    If someone goes off the rails, they start to behave in a way that other people think is unacceptable or very strange, for example they start taking drugs or breaking the law.

    e.g. They've got to do something about these children because clearly they've gone off the rails.
           他們必須得管管這些孩子了，因?yàn)樗麄儗?shí)在太不像話了。