Slickensides
n. （与邻石摩擦而成之）岩石光滑面；镜岩
🗣️ 情景例句
Do I have to get it done by noon?
我必须在中午以前做完吗？
Did you send it to him yourself?
你自己亲自送给他吗？
Yes, they fit very well.
不错，都很合身。