Osteon
n. [医]骨单位(密质骨构造的基本单位)
🗣️ 情景例句
He isn't likely to win.
他不可能赢。
Study sickness while you are well.
居安思危。
I got up early next morning hoping to find that the ants had given up in despair.
第二天早上，我起床后希望看见蚂蚁已因无望而放弃了尝试，