Could I type a letter on your computer?

我能在你的电脑上打一封信吗？

I need to type a letter, can you use your computer, Miss?

我要打一封信，小姐，我可以用一下你的电脑吗？

I need to type a letter. Can I use your computer, Miss?

我要打一封信，小姐，我可以用一下你的电脑吗？

If you type a letter, the interpreter complains, as in Listing 1.

如果键入一个字母，解释程序会报错，如清单1所示。

I hope you do not mind, but will it be possible for me to type a letter here?

我希望您不反对，不过我可以在这儿打一封信吗？