I can't thank you enough for all the work you've done.
对于你所做的一切我真不知道如何感谢你才好。
In regard to your request, no decision has been made.
关于你的请求还没有做出决定。
On turning eagerly to the text, one learns that the lady was a typist who found the sound of office typewriters worried her more and more until eventually she had to go into a mental hospital.