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
It was his first date in two years.
这是他两年来第一次约会。
Did you tell him yourself?
你自己亲自告诉他吗？
it would be up and down, to and for and from side to side.
呈现出上上下下、来来回回、左左右右3种性质的运动。