keep the enemy on the jump

例句：

1. 1. The team needs to keep their performance high throughout the season.
   球队在整个赛季中需要保持高水平的表现。
2. 2. She kept her promise and visited the museum on time.
   她履行了自己的承诺，准时参观了博物馆。
3. 3. The company keeps a close eye on its competitors' moves.
   这家公司密切关注竞争对手的动向。