他是今年全国数学竞赛的最高分获得者。

He was the ___top scorer in this year's national math competition.

绅士们在赛马会上都戴着高顶礼帽。

Gentlemen wore their finest ___toppers at the horse race.

圣诞树的顶端装饰着一个闪闪发光的星星顶饰。

There's a sparkling star ___topper on the top of the Christmas tree.