Sildenafil citrate
[医]枸橼酸西地那非<血管扩张药>
🧩 词语组成解析
n. 西地那非; [医]昔多芬, 一氧化氮样药物, 商品名Viagra（伟哥）
n. 柠檬酸盐\\n[化] 柠檬酸(或枸橼酸)盐(酯或根)
🗣️ 情景例句
Happy birthday, Carl.
生日快乐 ，Carl。
If I had known that, I could have helped you.
假如我早知道，我就能帮你了。
Never mind.
不要紧。