If you don't mind, I want to open the window.
如果你不介意的话，我想打开窗户。
If you don't mind, I want to start our work right now.
如果你不介意的话，我想立刻开始我们的工作。
If you don't mind, I'd like to have a cup of tea.
如果你不介意的话，我想喝点茶。