interval基本解释
n,间隔；间距；幕间休息,同近
He left the room, returning after a short interval with a message..他离开房间，过了一会儿就带回来一条消息。
间隔；间距；幕间休息英释nnthe period of time between two events, activities etc
time interval,时间间隔.短语
