Especially when it comes to speaking in English and fortunately or unfortunately.
特别是要用英文来演讲,不知是幸运还是不幸。
Failure is the mother of success.
失败是成功之母。
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.