Umbelactone
羥甲基甲基呋喃酮
??? 情景例句
Mary, this is Stone's brother Jim.
瑪麗，這是世通的兄弟吉姆。
Let's go out to the airport. The plane landed ten minutes ago.
讓我們?nèi)C場。 飛機在10分鐘前降落。
There were six million visitors in all,
參觀的人數(shù)總共是600萬。