Ketoestrone
酮雌(甾)酮
🗣️ 情景例句
I wasn't born yesterday.
我又不是三岁的孩子。
The short boy tried to peer over the desktop.
矮个子的男孩挣扎着要看到桌子的上面（有什么）。
Has he moved to his new house yet?
他已经迁进新居了吗？