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
I'm almost ready here.
我快要准备就绪了。
I used to start working at 9:00 o'clock every day.
我过去常在9:00点钟开始每天工作。
Look, Liz!Here's another report about Karen Marsh.
看啊，莉兹！这又有一篇关于卡伦。马会的报道。