Fluorone
荧光酮, 3 -异咕吨酮
🗣️ 情景例句
May I bring you a salad?
要不要来点沙拉呢？
In the United States ,there are many factories for making cloth.
在美国，有许多造布的工厂 。
In the evenings he studied hard for his exams, and most mornings he took tourists around Oxford.
他晚间努力学习，以应付考试，而大多数早上，他则带领游客在牛津大学参观。