Ad 2 vic.
[医] 连续两次, 两个剂量
🧩 词语组成解析
ad
[æd]
n. 广告;网球中的优势分advantage. ad in;
🗣️ 情景例句
I just received your letter and I want to let you know my opinion on your plans for the future.
来信已收到，我想告诉你我对你将来打算的看法。
What on earth has happened to trouble you so?
到底发生什么事让您如此发愁？
Let's think carefully, I replied.
“让我们仔细想一想，”我答道。