During a recent four-month hand hygiene campaign in Switzerland, for example, compliance with good practices increased 25% among doctors and nurses working in two cantonal hospitals.

例如，在瑞士最近发起的一场持续四个月的手部卫生运动期间，在两所州医院工作的医生和护士遵守良好规范的比例上升了25%。

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Finally, after nearly half a month, the Christmas letter was here in my hand.

终于，过了将近半个月，这封圣诞信终于到了我的手中。

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Maybe for one month you can try to design something retro. For another month, you can try your hand at some typographic posters.

也许你可以花一个月来做一些复古的设计，而其他时候则着手设计印刷海报。

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To test whether ravens could follow gaze, Dr Heinrich and Dr Bugnyar used six six-month-old hand-reared ravens, and one four-year-old.

ECONOMIST: Now, it seems, even the bird-brained have theories of mind

Stewart, who took over as the Yankees' starting catcher when Francisco Cervelli broke a hand last month, was replaced by Austin Romine.

WSJ: Pettitte hurt's back as Mariners beat Yankees 3-2

Gohouri inexplicably allowed Boateng's cross to fly over his head and Cullen, who turned 18 last month, was on hand at the back post to turn in the bouncing ball.

BBC: Wigan 2-2 Hull