Ad extremum
[医]直到有效
🧩 词语组成解析
ad
[æd]
n. 广告;网球中的优势分advantage. ad in;
n. 极值
🗣️ 情景例句
As far as English is concerned, he is second to none.
就英语来说，没有人能够比得上他。
I'll think it over.
我仔细考虑一下。
It's seven fifteen.
七点十五了。