Phthalanone
邻羟甲基苯甲酸内酯
🗣️ 情景例句
If we land a man on the moon, I think someone could surely invent a toaster that works properly.
如果我们能让人类登陆月球，我想一定会有人能发明在月球上还能正常运行的烤面包机。
In good years corn is hay, in ill years straw is corn.
丰年五谷贱如草，荒年稻草贵如粮。
My name is John Brain.
我叫约翰·布雷恩。