virility drug (trade name Viagra) used to treat erectile dysfunction in men
双语例句
He said sildenafil worked at least as well as melatonin, a jet-lag treatment. 他还认为昔多芬的作用至少和目前用于治疗时差综合症的退黑激素的作用类似。
In the study, researchers administered small doses of sildenafil to hamsters before adjusting the cycles of light and dark they lied in. 在这项研究中，研究者在调整仓鼠所处环境的白昼规律前，给其小剂量的昔多芬。
