negative hardening

例句：

1. 1. The weather was very negative for outdoor activities.
   天气对于户外活动非常不利。
2. 2. This policy is negative to the interests of the people.
   这项政策对人民的利益是不利的。
3. 3. Negative thinking can lead to a negative outcome.
   消极的思维可能会导致负面的结果。