万艾可（伟哥）在2009年的全球销售额达19.3亿美元，因此许多制药公司都渴望研发出下一个“伟哥”。
Pharmaceutical companies dream of developing the next Viagra, a product that had worldwide sales last year of about $1.93 billion.
万艾可（伟哥）在2009年的全球销售额达19.3亿美元，因此许多制药公司都渴望研发出下一个“伟哥”。
Pharmaceutical companies dream of developing the next Viagra, a product that had worldwide sales last year of about $1.93 billion.
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