mixed-highs signal

例句：

1. 1. The new software has mixed highs and lows, making it difficult to use.
   这款新软件既有优点也有缺点，使用起来很困难。
2. 2.The team's performance was mixed highs and lows, with some members performing exceptionally well.
   团队的表现好坏参半，有些成员表现特别出色。
3. 3.The weather forecast had mixed highs and lows, with some areas expected to see rain while others will be dry.
   天气预报高低起伏不定，一些地区预计会有雨，而其他地区则干燥。