Osteon
n. [医]骨单位(密质骨构造的基本单位)
🗣️ 情景例句
I'm sick of waiting around like this.
我对这样干等着感到厌烦。
Take the world as one finds it.
听之任之。
Let me see. It's about four thirty.
我看看，大约四点半了。