泳道是一种分组机制，它描述了状态图中对象所执行的活动。
错误
暂无解析
名词解释：privateinternationallaw
You’llbetheretomorrow--youwon’t________me________,willyou?
They________extensiveandpossiblydangerousactualflighttraining.
InEurope_______arethetwoleadingcontendersforaglobalreservationssystem.
___________issuchaspitfire.