Ed50
[医] 半数有效量
🗣️ 情景例句
No, she doesn't know Harry Bennett and his daughter Michelle.
不，她不认识Harry Bennett和他女儿Michelle。
Answer a fool according to his folly.
以其人之道，还治其人之身。
We were out of the part you needed.
你要的那种零件我们没有货了，