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
Well, now that you're here,
嗯，既然你回来了，
Love is full of trouble.
爱情多烦恼。
Good morning, Mrs Brown. Well, what's your trouble, young man?
布朗太太早上好。嗯，小伙子有什么病？