For larger size companies, a mail room is provided where each employee has their own box. Here are some sentences you might need to know.  

对于规模更大的公司来说，每个员工都有自己的邮箱。
下面是一些你可能需要知道的句子。

"Where is the mail room?" 

邮件室在哪儿?

"I don't have a mail box. Who should I contact to get one?" 

我没有邮箱，我该和谁联系呢?

"Your mail box was pretty full. You should go pick them up." 

你的信箱已经满了，你应该去整理一下。

"I haven't checked my mail in 2 weeks." 

我已经两周没检查过我的邮件了。

"I never receive anything so I don't need to check my mail often." 

 我从来没有收到过任何东西，所以我不需要经常查看邮件。

"What time does the delivery person usually come?" 

送货员通常什么时候来?

"What time does the mail usually come?" 

邮件通常什么时候来?

Large companies also have multiple buildings. So sending mail to another worker is a common practice. For example, if I need to send some financial documents to the auditor in a building down the street, I will use the Inter Office mail service. Some people might say I.O. to make it short.  

大公司也有很多楼。因此，给另一个员工发送邮件是很常见的事。例如，如果我需要将一些财务文件送给在街道大楼里的审计员，我将使用Inter - Office邮件服务。有些人可能会简短地说，I.O. 

"I can send it to you through Inter Office mail." 

我会通过I.O邮件发给你。

"I'll send it through Inter Office mail immediately."  

我马上通过I.O邮件发给你。

"I'll IO it to you." 

我会把它I.O给你。

"I need those documents. Can you IO it to me?" 

我需要这些文件，你可以把它I.O给我吗？

"Would you like to pick them up or should I send it through Inter Office mail?"  

你想要把他们整理一下还是需要我通过I.O邮件发给你？

The term inter basically means between when there is more than one. For example, in the word international, nation is a country, and if you have inter in front of it, we have international, which means involving two or more nations. 

“inter””这个词的意思基本上是指在不止一个的情况下。例如，在国际这个词中，”nation”是一个国家，如果你在前面加上”inter”，我们就有了”international”，这意味着涉及两个或更多的国家。