rail /reɪl/ star3 CET4 TEM4 (rails)

• 1.  

  N-COUNT（可数名词） A rail is a horizontal bar attached to posts or around the edge of something as a fence or support. 栏杆

  例：

  They had to walk across an emergency footbridge, holding onto a rope that served as a rail.

  他们不得不抓着当作栏杆用的绳子，走过一架应急人行桥。

• 2.  

  N-COUNT（可数名词） A rail is a horizontal bar that you hang things on. (挂物用的) 横杆

  例：

  This pair of curtains will fit a rail up to 7 ft 6 in wide.

  这副窗帘适合安装在宽度为7英尺6英寸的横杆上。

• 3.  

  N-COUNT（可数名词） Rails are the steel bars which trains run on. 铁轨

  例：

  The train left the rails but somehow forced its way back onto the line.

  火车偏离了铁轨，但又设法回到了原来的轨道上。

• 4.  

  N-UNCOUNT（不可数名词） If you travel or send something by rail, you travel or send it on a train. 乘火车; 用火车 (运送)

  例：

  The president travelled by rail to his home town.

  总统乘火车回到了家乡。

• 5.  

  N（名词） any of various small wading birds of the genus Rallus and related genera: family Rallidae, order Gruiformes (cranes, etc). They have short wings, long legs, and dark plumage 普通秧鸡
• 6.  

  V（动词） to provide with a rail or railings 提供护栏
• 7.  

  V（动词） to complain bitterly or vehemently 强烈抗议

  例：

  to rail against fate

• 8.  

  PHRASE（习语） If something is back on the rails, it is beginning to be successful again after a period when it almost failed. 东山再起 [英国英语] [journalism]

  例：

  It may take some time to get the economy back on the rails.

  可能要花一些时间使经济重回正轨。

• 9.  

  PHRASE（习语） 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. 行为出轨 [英国英语]

  例：

  They've got to do something about these children because clearly they've gone off the rails.

  他们必须对这些孩子采取点行动，因为很明显他们的行为已经出轨了。