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
The work was turned over to the secretary.
这项工作移交给了秘书。
There are only two minutes left.
只剩两分钟了。
So he couldn't buy himself lots of good things. But he had lots of friends instead.
所以他不能给自己买很多好东西。可是他却有许多朋友。