already

副词 already:

1. prior to a specified or implied time

1. The teacher was already in the room when I arrived.
   我到的时候，老师已经在屋里了。
2. You had already gone when I arrived there.
   当我到达时，你已经走了。
3. I've been there already and don't want to go again.
   我曾到过那，不想再去了。