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'll try again.
我再试一次。
What is the way to the bank?
哪一个方向是去银行的？
namely 6 million million miles.) Radio waves also travel at the speed of light,
即6万亿英里）。无线电波也是以光速传播的。