Not according to England's chief medical officer, Sir Liam Donaldson.

根据英国首席医学官，李安默·唐纳德逊爵士的意见，答案是不行。

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According to Sir Liam Donaldson, at least 30 minutes of moderate activity five days a week.

据李安默·唐纳德逊爵士说，每天至少适度活动30分钟，每周五天。

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The chief medical officer, Sir Liam Donaldson, said: "Protecting those most at risk from the disease will reduce the levels of serious illness, and deaths."

总医务官利亚姆·唐纳森爵士说：“保护高危人群，会使疾病的严峻程度和死亡人数下降。”

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The British government's chief medical adviser, Liam Donaldson,says it makes organizing vaccinations and planning a response to flu outbreaks easier.

VOA: standard.2009.09.24

Britain's Chief Medical Officer Liam Donaldson told VOA.

VOA: standard.2009.07.31

Chief Medical Officer Professor Liam Donaldson is also investigating the issue of organ retention.

BBC: Child's brain 'thrown away'

Chief Medical Officer Professor Liam Donaldson warned doctors that early diagnosis and treatment of the infection was vital.

BBC: Returning pilgrims fight meningitis

The government's Chief Medical Officer Liam Donaldson said the risks were "incalculably small", but it was removed from use.

BBC: A CJD brain