UP

例句：

1. 1. The team is working hard to improve their performance.
   团队正在努力提高他们的性能。
2. 2. She climbed up the mountain to see the sunrise.
   她爬上山去看日出。
3. 3. We need to keep our goals in mind and strive for improvement.
   我们需要记住我们的目标并努力改进。