Sildenafil
n. 西地那非; [医]昔多芬, 一氧化氮样药物, 商品名Viagra（伟哥）
🗣️ 情景例句
Stop yapping!
别瞎扯啦！
Do you want to remit the money by air mail or by cable, sir?
您想要航空信还是电汇，先生？
What's matter?
怎么回事？