He started libraries, since words were his metier, but had to give the books away, keeping only his dictionaries.

他办了几家藏书室，因为文字是他的专业，但离开时不得不把书送人，只带着他的字典离开。

Her timing seemed strange to some, just as her metier was fading.

对一些人来说，她成功的时机似乎很奇怪，因为她的专长正在消失。

French was never your metier, I seem to remember.

我记得法语不是你的强项。