Television repairman was a common occupation in the 1950s, for instance.
出自-2014年6月阅读原文
The authors documented an annual drop of as many as 120,000 cases of heart disease, 66,000 instances of stroke and 99,000 heart attacks caused by high blood pressure after a 3-g-per-day reduction in salt.
出自-2013年6月阅读原文