Parabromoacetophenone
对溴苯乙酮
🗣️ 情景例句
He is making good progress after his operation.
他动过手术后病情大为好转。
He is attending a conference now.
他正在出席会议。
Invariably the background was the same: dirt and poverty, and very uncomfortable.
肮脏、贫穷，极其不舒适。