Peridotitic
橄榄岩（peridotite的变形）
🗣️ 情景例句
since this is so easy ....
既然那么简单……
Los Angeles. I stayed with my brother.
落杉矶。上我兄弟家去了。
With practice, no doubt, I could in time learn to write by holding the pen still while the paper moved.
毫无疑问，经过练习，我最终能够学会笔不动而纸动来写字。