A vaccination, for it to work around the world, has to be inexpensive, transportable, possible to use without advanced medical personnel, and those kinds of things.

而疫苗接种,为了能适用于全世界,它必须便宜,便于运输,还要能在没有高级医生的情况下使用,它应该具有诸如此类的特点

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And I work a lot on a medical show called "Holby City",

我经常为一部叫《霍尔比市》的医务剧工作，

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I happen to work in medical imaging.

我正好在医学成像方面有所研究。

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