Umbelactone
羟甲基甲基呋喃酮
🗣️ 情景例句
Mary, this is Stone's brother Jim.
玛丽，这是世通的兄弟吉姆。
Let's go out to the airport. The plane landed ten minutes ago.
让我们去机场。 飞机在10分钟前降落。
There were six million visitors in all,
参观的人数总共是600万。