keeping sample

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.The scientist kept a diary of his experiments for years.
   这位科学家多年来一直记录他的实验日记。
3. 3. The company is keeping its promise to invest in renewable energy.
   该公司承诺投资可再生能源，正在兑现其承诺。