Siltstone
n. [地]粉砂岩
🗣️ 情景例句
Forget it.
算了吧。
Art is long, but lift is short.
人生有涯，而学无涯。
thereby proving that the burglars had either used skeleton keys or entered over the balcony.
由此可以证明，窍贼或者是用万能钥匙，或者是翻越阳台进来的。