Fluorone
荧光酮, 3 -异咕吨酮
🗣️ 情景例句
Both?
一起？
He will speak about the sales projections for the coming year.
他将谈谈未来一年的销售计划。
Tomorrow I want you to give us a talk, Jim.
吉姆，明天我想请你给我们作一次讲话。