ad.

1. （加强语气）真正地，确实，实在
   A friend in need is a friend indeed.

   患难之交才是真正的朋友。

2. （表示让步）当然，固然
   He is indeed young, but he is competent.

   他确实很年轻，但他很称职。

3. （表示进一层的意思）更确切地；甚至
   I am hungry; indeed, I am almost starving.

   我饿了，我简直要饿死了。

int.

1. （表示惊讶、讽刺、轻蔑等）真是；哦，不见得吧
   --"He left without saying a word." --"Did he, indeed?"

   —“他一句话没讲就走了。” —“一句话没讲，真的？”

adv.

1. used to emphasize a statement, description, or response.
2. used to introduce a further and stronger or more surprising point.
3. used in a response to express interest, incredulity, or contempt.