the best and most notable aspect of something
（事物的）最好方面；最顯著方面
the scene is the crowning glory of this marvellously entertaining show.
該場面是這部精彩娛樂片的精華。
as the final event in a series of particularly fortunate or unfortunate events
（作為一系列極其幸運(yùn)或不幸的事件的結(jié)尾）更讓人高興的是；更糟糕的是
it was cold and raining, and, to crown it all, we had to walk home.
天很冷，又在下著雨，更糟糕的是，我們得步行回家。