May I put your flowers in a cool place, to keep them fresh until we've landed?

我帮您把鲜花保存在凉爽的地方，落地后再交给您好吗？

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Studies find that simply switching study rooms helps make new associations and keep them fresh. Carey writes

研究发现仅仅需要转换书房帮助建立新的联系，使他们保持新鲜感。

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Please remember! No eating or drinking on metro trains. Help us keep them fresh, clean and tidy. Thank you!

各位乘客请注意，地铁车厢内严禁饮食，请保持车厢清洁卫生，多谢合作。

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Nevertheless, even venerable brands have to be worked on constantly to keep them fresh, says Alan Harris, Kellogg's chief marketing officer.

ECONOMIST: Competition in your local supermarket is getting vicious

Ms. Blair created a cotton panel embedded with hundreds of orchid vials, one for each rose, to keep them fresh and blooming past Derby Day.

WSJ: The Kentucky Derby's Rose Queen

Hodgson has left the Spaniard and captain Steven Gerrard out of Thursday's Europa League trip to Napoli to keep them fresh for Sunday's vital Premier League match against Blackburn at Anfield.

BBC: Roy Hodgson says Fernando Torres may be Man Utd target