Mr. McDonald estimates the total over-thecounter market is about $200 billion a year in sales.
McDonald先生估计所有的非处方市场年销售额约为2000亿美元。
2
As medical professionals argue, most alternative medicines are introduced onto the market, via over-the-countersales or the Internet, without any regulatory oversight.
医疗专业人士指出，大多数替代药物系通过非处方销售或因特网进入市场，不受任何监管。
3
In the first few months of 2009, the number of smokers increased by 3.4 per cent while over-the-counter tobacco sales went down by three per cent.