youdao

Please keep the windows closed while the Air-conditioner is turning on, thank you!

车内已开启空调，请关闭您身边的窗户，谢谢合作！

youdao

Please stay indoors with your windows closed.

请呆在室内并关闭窗户。

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But the shutters stayed closed until after astronauts removed the windows' protective covers during a nearly six-hour spacewalk Wednesday.

VOA: standard.2010.02.18

Guests are even asked to keep their windows closed at night to help the same cause.

BBC: The Gal��pagos Islands, a land untouched

Keep the windows closed and the air-conditioning on, giving you an allergen free bubble.

FORBES: Six Brands to Consider and Six Suggestions of What to Do When February Flowers Bring March Allergies

Emergency officials in southern Kent advised residents "to keep doors and windows closed due to a gas cloud".

BBC: French Lubrizol factory struggles to stop foul gas leak