chain letter

noun

1. 连锁信（收信人复写多份寄出）
   a letter sent to several people asking them to make copies of the letter and send them on to more people

1. 连环信(寄给数人，要求他们将信件复制后再寄给更多的人，往往承诺可以得到金钱回报)
   A chain letter is a letter, often with a promise of money, that is sent to several people who send copies on to several more people. Chain letters are illegal in some countries.

1. The most unforgettable letter I have ever received was a chain letter from my friend.
   我收到过的最难忘的一封信，就是我的朋友发来的一封连锁信。
2. In some ways it's just a mimic of an old-school snail mail chain letter.
   在某些方面，这只是一个模仿的旧学校蜗牛邮件连锁信。
3. The promise that all participants in a chain letter will be winners is mathematically impossible.
   骗子承诺所有参与连锁信活动的人士都会变成赢家，这在数学上是不可能实现的。

noun

1. a letter that is sent successively to several people