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
I have something for you. I made it myself.
我有件东西给你们， 是我亲手做的。
The worth of a thing is best known by the want of it.
物以稀为贵。
The old lady though the was a fussy creature,
老妇人觉得巡官大惊小怪，