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
And Richard thanks you.
Richard也会感谢你。
The tortosis wins the race while the hare is sleeping.
兔子睡大觉，乌龟才得胜。
Is this a book?
这是一本书吗？