Ad usum
[法] 按照习惯, 按照惯例
🧩 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
He is tough to work with.
他很难共事。
Who is the governor of this state?
谁是这州的州长？
What are you doing, Mum?
妈妈，你在干什么？