A'-dipyridyl a
[医] α,α'-双吡啶
🗣️ 情景例句
of forty-three years of on-the-job training.
关于我四十三年的工作经历。
Music washes away from the soul the dust of everyday life.
音乐可洗去灵魂中日常生活所沾染的污垢。
It was Wednesday.
昨天是星期三。