Availability of this freeze-dried vaccine made it, then, possible to think about vaccinating people all over the world.

冻干疫苗的应用能使医护人员,考虑向全世界人民接种疫苗

耶鲁公开课 - 生物医学工程探索课程节选

Okay, so availability and cost become two key issues.

所以便利性和价格优势是两个主要原因

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

They have refuse to pay the cost that maintain the health care system, and so in countries like Britain and Canada, t find the same availability of health care like that in the United States.

政府拒绝为民众买单,维持医疗福利，所以在英国和加拿大这样的国家，你找不到，you，don’,同样方便的医疗,可以与美国媲美的。

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