dead letter

美 
英 
  • n.死信;(指法律,协议等)一纸空文
  • 网络具文;死消息;无法投递的信件
复数:dead letters  
dead letter
n.
1.
[ususing]
无人遵守的法律;形同虚设的协定;空文a law or an agreement that still exists but that is ignored
2.
死信;无法投递(或退回)的邮件a letter that cannot be delivered to an address or to the person who sent it

例句

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