positive chemotaxis

例句：

1. 1. The team's performance was positive, but there were still some issues to be addressed.
   团队的表现是积极的，但还有一些问题需要解决。
2. 2. The new policy is positive for the development of our country.
   新政策有利于我国的发展。
3. 3. The positive atmosphere at the meeting encouraged everyone to contribute their ideas.
   会议中的积极氛围鼓励每个人提出自己的想法。