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1·I work out regularly to keep fit.

我经常做运动以保持健康。《牛津词典》

2·My family helps to keep me centred.

家人帮助我保持冷静。《牛津词典》

3·I kept telling myself to keep calm.

我不断叮嘱自己要保持冷静。《牛津词典》

4·You need to work hard to keep ahead.

你要努力才能保持领先优势。《牛津词典》

5·The riders had to keep their pace up.

骑手们必须保持速度不减。《柯林斯英汉双解大词典》

6·They sang songs to keep their spirits up.

他们唱歌以保持高昂的情绪。《牛津词典》

7·She tries to keep fit by jogging every day.

她每天慢跑以保持健康。《牛津词典》

8·The company wants to keep down labour costs.

公司想保持低劳动成本。《牛津词典》

9·Tiled kitchen floors are easy to keep clean.

铺了地砖的厨房地面容易保持清洁。《柯林斯英汉双解大词典》

10·They embraced and promised to keep in touch.

他们互相拥抱，许诺将保持联系。《牛津词典》