Bordeaux is on the main Paris-Madrid line so there are frequent trains.波尔多位于巴黎到马德里的铁路主干线上，来往列车频繁。The parliament in Madrid was taken over by civil guards.马德里议会大厦被国民警卫队接管了。This restaurant has cornered the Madrid market for...
Vaccination immunizes people against smallpox.种牛痘可以免患天花.Vaccination immunizes one against smallpox.接种牛痘能使人免患天花.A health worker immunizes an infant in Nepal.医疗工作者在尼泊尔为婴儿注射预防针....