Thioxanthone
噻吨酮
🗣️ 情景例句
This is Susan with Jiaotong University student. May I have your name, sir?
我是交通大学的在校生苏珊，请问您贵姓？
Please call before you come,otherwise we might not be home.
请在你来前打一下电话来,否则我们可能不在家。
How could we do that?
怎么说呢？