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
Thanks, Mom.
谢谢，妈。
Wise men chanbge their mind, fools never.
聪明人随机应变，愚蠢者固执己见。
He was obviously very nervous and for some minutes stood awkwardly before the microphone.
他显然非常紧张，局促不安地在麦克风前站了好几分钟。