tip-off

例句：

1. 1. The detective tipped off the police about the suspect's movements.
   侦探向警方透露了嫌疑人的行踪。
2. 2.She gave me a subtle tip-off that she was expecting me to come over.
   她给我一个微妙的提示，说她在等我过来。
3. 3. The game ended with a tip-off, and the players rushed to their positions.
   比赛以一个提示结束，球员们急忙回到各自的位置。