to top sth off or to top off sth完成；使结束；(尤指)一举了结
We topped off the meal with a glass of cognac.我们以一杯干邑白兰地结束了这顿饭。
to top it all off一举结束
He topped off his career with an Olympic gold medal.他用一枚奥运金牌给自己的运动生涯画上了句号。
The evening was topped off by a special showing of the museum's new Degas exhibit.最后博物馆特别展示了一件新收藏的德加作品, 当晚的活动就此结束。