root

1. 萊茵河發(fā)源于何處？
   Where is the source of the Rhine?
2. 衍生物來源于特別的出處或由一特別的來源分支衍生而來的物體
   Something that branches out or derives its existence or origin from a particular source.
3. 我相信那句話是源于你昨天所說的。
   I believe that remark originated from what you said yesterday.
4. 它起源于遙遠的中世紀(jì)。
   It has its roots deep in the Middle Ages.
5. 這種建筑風(fēng)格起源于古希臘。
   The style of architecture originated from the ancient Greeks.

于的英語翻譯：