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
Language is her strength, math is her weakness.
语言是她的强项，数学则是她的弱门。
Sure.
一定转告。
No, we didn't fix anything.
不，我们没有决定任何事情。