adj.门户开放的;公开的;
例句:
Her mother came out of an open door.
她妈妈从一扇开着的门里走出来.
Here was an open door to see all of that.
这扇门敞开着让她看看这一切.
The open door tempted him into it and robbed the house.
房子门开着,这引诱他进去偷了东西.