vt.

1. 留住；使耽搁
   Allow me to detain you for a moment.

   请允许我耽搁你一会儿。

   Well, mother, I won't detain you any longer.

   好啦，妈，我不再留你了。

2. 拘留，扣留
   The police detained the man to make further inquiries.

   警察拘留了那个人以作进一步的审问。

v.

1. keep (someone) from proceeding by holding them back or making claims on their attention.
2. keep (someone) in official custody.