1.开，启
2.（尤指作为通道的）口子；孔洞
3.（主美）林中空地
4.（正式的）开始；开端；首场演出
5.和合页（书中面对面的两页）
6.（职位的）空缺
7.有利机会；机遇
8.【棋】开局
a.
开放的；开始的；首场演出的 英语解释
- opportunity especially for employment or promotion
- first or beginning
- the first performance (as of a theatrical production)
- a ceremony accompanying the start of some enterprise
- an open or empty space in or between things
- the initial part of the introduction
- a recognized sequence of moves at the beginning of a game of chess
- a vacant or unobstructed space that is man-made
- becoming open or being made open
- the act of opening something
- an aperture or hole that opens into a bodily cavity
- a possible alternative
- an entrance equipped with a hatch; especially a passageway between decks of a ship
- the first of a series of actions