It's just like a telephone or fax number which we cannot do without.

这就像电话或者传真号码，我们不能没有。

youdao

Records shall be properly kept for any communications such as telephone or fax. In addition related faxes and writing documents shall be kept properly.

不管是电话了解，还是传真询问，都要进行必要的记录，并对相关传真和书面文件进行保存。

youdao

And just as you do not need a separate plan for using your telephone or fax machine to facilitate successful engagement, you also do not need a separate Social Media plan.

正像你不需要一个单独的计划来使用你的电话或者传真机以便于参与一样，你也不需要一个单独的社会媒体计划。

youdao

When groups could communicate only by telephone, fax or mail, it was prohibitively expensive to share information or build links between different organisations.

ECONOMIST: Citizens�� groups

Companies must not send "persistent and unwanted" communications by telephone, fax, mail or email.

BBC: PPI: The unintended consequences of a scandal

The reason: most business transactions were already done at a distance, whether by fax, telephone, post, or private electronic links.

ECONOMIST: Electronic commerce