收音机没完没了地向他播放流行音乐。
如果流行歌手有发声问题,他们确实需要更仔细地挑选工作场合。
If pop singers have got voice problems, they really need to be more selective about where they work.
处女地流行病指的是那些风险人群以前没有接触过袭击他们的疾病,因此在免疫上几乎毫无防御能力的疾病。
Virgin-soil epidemics are those in which the populations at risk have had no previous contact with the diseases that strike them and are therefore immunologically almost defenseless.
The epidemic simply migrates from one part of the world to another."
如果流行就是简单地,从世界上的一个地方到另一个地方
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