positive work

例句：

1. 1. The team is positive about their chances of winning the championship.
   这个团队对赢得冠军抱有积极的期望。
2. 2. The new policy is positive for the environment.
   新政策对环境是积极的。
3. 3. He was positive about the outcome of the meeting.
   他对会议的结果持积极态度。