加ian的后缀的单词

　　My father was a historian of repute. His speciality was the history of Germany

　　我的父亲是一名颇有名气的历史学家，他专门研究德国历史。

　　Historian Michael Beschloss debunks a few myths.

　　历史学家迈克尔·贝施洛斯破除了几个不实传言。

　　Commercial banks act as an independent third-party funds custodian.

　　商业银行作为独立的第三方资金托管人。

　　OK, I see we've got custodian services on the agenda.

　　好，我看我们已经把保管业务放上议事日程了。

　　And then there's the man inside the custodian.

　　而这是管理者管的人。