Noscapine has been primarily used as antitussive agent for several decades.
过去几十年中,那可丁一直被用作镇咳药。
This is the most serious natural disaster to affect the region for several decades.
这是几十年来,该地区遭受的最严重的自然灾害。
Evidence that plants obtain vitamins from the soil has been available for several decades.
几十年前就存在证明植物能从土壤中吸收维生素的证据了。
It is a mostly African American city that has suffered economic hardship for several decades, a stark contrast to the fame and wealth the Jackson family attained as a result of successful music careers after they left the city.
VOA: standard.2009.07.11
The options have been traded for several decades, starting with the Chicago Board Options Exchange.
期权最初从芝加哥期权交易所进行交易,到现在已经交易了几十年
"We've only had this technology around for about fifteen years, and most carcinogens will take about several decades, thirty-forty years to develop a cancer.
VOA: special.2011.06.06
应用推荐