指挥棒

例句：

1. 1. The band leader used a conductor's baton to lead the performance.
   乐队指挥用指挥棒引导表演。
2. 2. The musician held his trumpet with one hand and used the other as a conductor'sbaton.
   这位音乐家一只手拿着号角，另一只手作为指挥棒。
3. 3. The conductor's baton was the only thing that could control the tempo of the orchestra.
   指挥棒是控制交响乐队节奏的唯一工具。