Yesterday Mrs. Morrison had given the flat an extra clean.

昨天，莫里森太太把这套公寓房间额外打扫了一遍。

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Morrison had given the flat an extra clean, and today she had had brought a card and a bunch of marigolds when she came to do the breakfast.

昨天，墨里森太太把地板打扫了一遍，今天在她来做早饭时，带来了一张卡片和一束金盏花。

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Parks are kept extra clean for any visitors coming, hotel employees are friendlier, displaced Kenyans are being escorted back to their homes and the economy is showing small improvements.

公园在维护清洁好让观光客来参访，旅馆员工更加友善了，肯亚难民被护送回他们的家，而经济表现出轻微的进步。

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These supplies include food, medicine,clean water, and extra power supplies.

VOA: special.2010.01.05

... A 'green power' program regularly invites customers to pay $4 to $10 extra per month to switch to clean energy.

VOA: standard.2010.03.23

By the lights of M Jewell LLC, the court had no right to give Mr. Powell an extra thirty days to clean things up.

FORBES: How To Sell Your Home To A Stranger For A Fraction Of Its Value

Renewables are worth their extra costs because they are clean.

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The drawback of using plasma technology to clean exhausts has always been the extra power required to run the system.

ECONOMIST: Diesel engines