For example, you look up a number in the telephone book, and before you dial, you repeat the number over and over.

例如，你在一本电话号码簿中查到一个号码，在你还没拨号之前，你得再三复习这一号码。

youdao

Law of telephone: When you dial a wrong number, you never get an engaged one.

电话定律：拨错电话号码时，那个号码从来不占线。

youdao

Law of telephone: When you dial a wrong number, you never get an engaged one.

电话定律：拨错电话号码时，那个号码从来不占线。

youdao