This makes sense : in those areas with a high level of radiation , living things would tend to die or sicken and fail to reproduce .
这说明了：在那些高辐射地区，生物更易死亡或患病并且更易不育。
Surveys since then suggest that the dramatic fall in the number of americans who sicken or die during heatwaves is a direct result of widening air-conditioner ownership , from 68 % of american households in 1993 to nearly 90 % today .
