Wc take the liberty of announcing to you that…

我们冒昧地向你宣告……

May I take the liberty of introducing myself to you?

我可以冒昧地自我介绍吗？

May I take the liberty of introducing myself to you?

我可以冒味地自我介绍吗？

I take the liberty of asking you, you are a friend there.

我冒昧的问你，你是那里的朋友。

May I take the liberty of asking you to read this booklet?

我可以冒昧地请你读读这本小册子吗？