ad.

1. 實際上，真的
   Did you actually see him break the window?

   你真的看到他打破窗戶嗎？

   She looks young, but she's actually 50.

   她看上去年輕，可是實際上已五十歲了。

2. 竟然
   She was so angry that she actually tore up the letter.

   她一氣之下竟然將信撕碎了。

adv.

1. as the truth or facts of a situation.
2. as a matter of fact; even.