以上来源于: WordNet
N-UNCOUNT Viagra is a drug that is given to men with certain sexual problems in order to help them to have sex. 万艾可; 一种壮阳药 [trademark]
Viagra was invented by Pfizer scientists who were working on a drug for heart conditions.
伟哥是辉瑞公司的科研人员在研究一种治疗心脏病的药物时发明出来的。
The men and women were randomly assigned to two groups, either to be treated with Viagra or a placebo.
然后,在实验过程中,男性志愿者和女性志愿者被随意分在2个组中,研究人员通过伟哥或安慰剂对他们进行治疗。
Viagra can be fatal if used in combination with nitrates, the drugs prescribed to treat heart problems such as angina.
伟哥与硝酸盐合用是致命的,尽管后者同样是用于治疗心绞痛的药物。
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