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
My mother-in-law is driving me nuts.
我岳母使我快要发疯了。
He is playing on the slide over there.
他正在那边溜滑梯。
Lily, do you have a ruler?
莉莉，你有尺子吗？