我是弗雷德里克·特里维斯博士，伦敦医院的医生。

My name is Dr Frederick Treves. I am a doctor at the London Hospital.

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是的，哦，西尔·库克先生，我是伦敦医院的一个医生。

'Yes, well, Mr Silcock, I'm a doctor at the London Hospital.

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伦敦医院的病毒学家约翰·奥克斯福德教授表示，戴上口罩就能预防流感的证据十分微薄。

Professor John Oxford, a virologist at leading London hospital, said: "Really, there is very little evidence that masks actually offer much protection against flu.

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