Ad def.an.
[医] 至昏厥时
🧩 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
Please go over it and see if everything is in order.
请再过目一下，看看是否都符合规定。
There is no time like the present.
机不可失，时不再来。
It's about a time when there were black slaves in North America. It's about their fight for freedom.
（它）讲的是有一段时期，北美洲存在黑奴。影片讲述他们为自由而斗争的情况。