I typed three letters this morning.

今天早上我用打字机打了三封信。

What three letters make a man of boy?

哪三个字母让男孩的男人？

Whwhen three letters do we hconsumed most?

我们最憎恶哪三个字母？

Which three letters can frighten a thief away?

哪三个字母能把小偷吓走？

As we would say at Facebook, three letters: WTF.

对此就该用我们在Facebook或者互联网上常说的三个字：WTF。

Here are extracts from three letters she received recently.

以下是从辅导员近期受到的信件中抽出的三封。

What pleased him was to get three letters from the same friend in a day.

使他高兴的事情是他一天收到同一个朋友的三封来信。

Payment is divided into the main remittance, collection, three letters of credit.

支付方式主要分为汇付、托收、信用证三种。

Could you please have three letters of recommendation sent to me directly via email?

我还没有正式申请，只是陶瓷，为什么就要推荐信的电子版给他？

What is pronounced like one letter, written with three letters, and belongs to all animals?

读起来象一个字母，但是用三个字母写成，属于所有动物？