U. s. d.
[医] 美国处方集
🧩 词语组成解析
[医] 单位
🗣️ 情景例句
The interview was fine.
面谈得很好。
You've changed little.
你一点也没变。
He was so surprised at being discovered that he did not even try to run away.
他由于被人发现而感到非常吃惊，甚至都没有企图逃跑。