After a "cooling off" period of seven days, the patient can sign a certificate of request.

在七天的“冷静”期之后，病人可以签署一张申请证书。

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The patient must be diagnosed as terminally ill by two doctors. After a "cooling off" period of seven days, the patient can sign a certificate of request.

但此前病人必须经由两名医生诊断其确实已病入膏肓，然后病人再需经过7天的“冷静思考期”，才可签署一份申请证明。

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There's also a Period which can be used to represent any period of time, like “two years, three months, seven days, four hours, fifty mintues”.

还有一个 Period类来表示任意的时间周期，如“两年、3个月、7天、4小时、50分钟”等。

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Under the proposed legislation European gas companies would be required to ensure supplies to householders in cases of extreme temperatures during a seven-day peak period, or during any period of at least 30 days of exceptionally high demand.

BBC: MEPs pass law to protect European gas supplies

"It (the match against Burnley) was our third game in seven days and now we're going to have a period of five games in 14 days and that makes huge demands, " Martinez added.

BBC: Martinez targeting Cardiff scalp

Out of 58, 070 patients, seven missed the 12-week guarantee, but they were treated within a few days of that period ending.

BBC: A&E department