delay,put off区别The train

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delay:
de.layed; de.lay.ing; de.lays;
delayv.tr.To postpone until a later time; defer.
延期；推迟To cause to be later or slower than expected or desired:
使…延迟使…比期望的要迟一些或慢一些：
Heavy traffic delayed us.
交通堵塞使我们迟到了
delayv.intr.
To act or move slowly; put off an action or a decision.
延缓,延期行动慢；推迟一个行动或一项决定
delayn.The act of delaying; postponement:
拖延,延期推迟的行为；延迟：
responded without delay.
即刻回信The condition of being delayed; detainment.
耽误耽搁的状态；耽误
The period of time during which one is delayed.
耽搁的时间The interval of time between two events.
间隔的时间两件事之间间隔的时间
put off
v.推迟, 拖延, 搪塞, 使分心, 使厌恶, 扔掉, 脱掉, 劝阻
======以下答案可供参考======
供参考答案1:
应该是说火车由于事故被延误了。