No one does anything about it and the law becomes a dead letter.

没人执行，该法律即成一纸空文。

This is a dead letter, so I can not deliver it.

这是一封盲信，我没有办法投递。

Many people say that detente is now a dead letter.

很多人说缓和国际紧张局势的论调已是明日黄花。

Always assign a dead letter queue (DLQ) to the queue manager.

始终为队列管理器分配死信队列(dead letter queue, DLQ)。

The message is placed in the sending queue manager's Dead Letter Queue.

该消息会放入发送队列管理器的死信队列中。