character address counter

例句：

1. 1. We need to keep track of all the addresses in our address book.
   我们需要在我们的地址簿中跟踪所有的地址。
2. 2. The address counter at the post office is always busy.
   邮局的地址计数器总是很忙。
3. 3. He used his address counter to find out where he was supposed to be meeting her.
   他用他的地址计数器找到了他应该在哪里见她的地方。