Vaccination and other prophylactic measures can be carried out.可以采取疫苗接种和其他预防措施。Anyone who wants to avoid the flu should consider getting a vaccination.如果不想得流感，就该考虑接种疫苗。Smallpox can be contained by vaccination.种牛痘疫苗可以控制住天...
Vaccination immunizes one against smallpox.接种牛痘能使人免患天花.Vaccination and other prophylactic measures can be carried out.可以采取疫苗接种和其他预防措施。Smallpox can be contained by vaccination.种牛痘疫苗可以控制住天花.Researchers continued to study t...
据说巴士发生翻车，跌进了峡谷。The bus is said to have over-turned and fallen into a ravine.据说帐篷的缝合处快炸线了。The camps are said to be bursting at the seams.据说为研究和技术方面提供的经费严重不足。Research and technology are said to be chronically underfunded....