Levels of Mycobacterium avium were 100 times higher than those found in typical household water supplies.

细胞分枝杆菌数量是普通家庭用水所含数量的一百倍.

Last year, the typical household saw its income grow by about twenty-eight hundred dollars – the biggest one-year increase ever.

去年,最普遍的家庭都可以看到,他们的收入增长了近2800美元--这是有史以来一年中最大的增长量。