minor mode

例句：

1. 1.The engineer used a minor mode to reduce the noise in the factory.
   工程师使用了一个次要模式来降低工厂的噪音。
2. 2.In music, the minor mode is often associated with sadness and melancholy.
   在音乐中，次要模式通常与悲伤和忧郁联系在一起。
3. 3. The composer experimented with different minor modes to find the perfect harmony for their piece.
   作曲家尝试了不同的次要模式，以找到他们作品的最佳和谐。