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'll bicycle down to the village and get them.
我骑脚踏车去镇上拿。
What day was yesterday?
昨天是星期几？
A drink? We've only just started! There are twenty more trees to be planted!
喝水？我们才刚刚开始！还有20多株树要种呢！