ice hockey timer

例句：

1. 1. The ice hockey game was intense, and the players had to be on their toes all night.
   冰球比赛非常激烈，球员们整晚都得保持警惕。
2. 2. The referee used an ice hockey timer to keep track of the game's duration.
   裁判使用一个冰球计时器来记录比赛的时间长度。
3. 3. During the game, the coach kept a close eye on the ice hockey timer to ensure that it wouldn't run out before the end.
   比赛中，教练密切注视着冰球计时器，以确保它不会在比赛结束前用完。