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
You've got it.
你对了。
It's a beautiful country with many large lakes.
这个国家很美，它有很多湖泊。
Then the cannons of the anchored warships thundered a salute to which the Vasa fired in reply.
这时，停泊在港口的其他战船向瓦萨号鸣炮致礼，瓦萨号也鸣炮回礼。