change positively

例句：

1. 1. The weather has changed dramatically since yesterday.
   自从昨天以来，天气发生了巨大变化。
2. 2.The company is planning to change its policy to better suit the market.
   该公司计划更改其政策以更好地适应市场。
3. 3.The old house has been changed into a modern apartment building.
   这座老房子已经被改造成了一座现代化的公寓楼。