top tone

例句：

1. 1. The top of the mountain was shrouded in mist.
   山顶被雾气笼罩。
2. 2. The top player in the game won the championship.
   比赛中表现最好的选手赢得了冠军。
3. 3. The top-selling book is a bestseller.
   销量最高的书是畅销书。