英语释义
1
n a clear or unobstructed space or expanse of land or water
2
n where the air is unconfined
3
n a tournament in which both professionals and amateurs may play
4
n information that has become public
5
v cause to open or to become open
6
v start to operate or function or cause to start operating or functioning
8
v begin or set in action, of meetings, speeches, recitals, etc.
9
v spread out or open from a closed or folded state
12
v have an opening or passage or outlet
13
v make the opening move
15
v display the contents of a file or start an application as on a computer