Typhoid fever sneaks in when sanitation fails.环境卫生搞不好,伤寒就会乘虚而入.Everyone who is going abroad will need to be immunised against typhoid.准备出国者均需注射伤寒预防针.Everyone who is going abroad will need to be immunized against typhoid....
Everyone who is going abroad will need to be immunised against typhoid.准备出国者均需注射伤寒预防针.An outbreak of typhoid followed.继而爆发了伤寒.Typhoid fever sneaks in when sanitation fails.环境卫生搞不好,伤寒就会乘虚而入....