A typhus epidemic struck in the winter of 1919–20.1919至1920年的冬天斑疹伤寒症流行.the containment of the epidemic对流行病的控制There is abundant academic thinking and methods of truncating and reversing acute epidemic febrile diseases.《温疫...
May I be firm and resolute! May I be kind, compassionate, and friendly! May I be humble, calm, quiet, unruffled and serene! May I serve to be perfect! May I be perfect to serve!愿我能坚决勇敢，有毅力和恒心。愿我能仁慈、友善、富有同情心。愿我能谦卑、宁静、沉着、安...
The South African mailboat arrived on Friday mornings unless bad weather intervened.除非受恶劣天气干扰，南非邮船一般在星期五上午抵达。Hattie intervened and told me to stop it.哈蒂打断我，叫我停下来。"I've told you he's not here," Irena intervened....