许多学生被浓烟和大火困在了较高的一层上。Many students were trapped by smoke and fire on an upper floor.通常是那些受教育程度较高的人在全民公决中投赞成票。In general, it was the better-educated voters who voted Yes in the referendum.溶液中的气体由浓度较高的区域向浓度较低的区域扩散.A gas in ...
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....