Ad grat. acid.
[医] 至适宜酸度
🧩 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
You're very lucky to have a caring family.
你很幸运有一个温馨的家庭。
That's not the point.
这不是重点。
Then the teacher says, Stop and put your hands in front of you now.
“现在停止，并把手放在面前。”