Periostea
periosteum的复数
🗣️ 情景例句
Don't mention it.
没事儿。
What cannot be cured must be endured.
事已无法可救，只得耐心忍受。
runs the gentle slope of the continental shelf, geologically part of the continents.
从地质学上来说，它是大陆的一部分。