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
When I watch sad movies I get really depressed.
当我看悲伤的电影时，我常常很难过。
Let not the cobbler go beyond his last.
安分守己。
Give it to me, please.
给我。