Ad substance
[医] 突触传递物质
🧩 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
I always eat three square meals a day.
我总是每天三顿饭都好好吃。
Our guarantee covers maintenance for both parts and labor.
我们的保证是包括更换零件和免费保养。
and zoomorphic animal shapes ablaze with red and gold and blue,
还有用红色、金黄色、蓝色绘制的光彩夺目的兽形图案，