Ethinylation

乙炔化

🗣️ 情景例句

How was the patient?
病人怎么样了?
Pupil. He is studying.
学生。正在学习。
To my surprise, he gave me the money immediately.
令我惊奇的是,他立刻把钱给了我。
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🔤 更多 E 开头的单词

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