My god! I can't access my mail box today!

天！今天我邮箱打不开了！

He checks his mail box several times a day.

每天他都要检查几次邮箱。

These documents have been sent to your mail box.

这些文件已经发到你的邮箱了。

Can I apply for a personal mail box at the post office?

我可以申请一个邮局的私人信箱吗？

I need to check my e-mail box. Can I use your computer, Miss?

我看一下邮件，小姐，我可以用一下你的电脑吗？