Siltite
粉砂岩
🗣️ 情景例句
Would you happen to have a room for two availbale
你们可有一个双人房间
These buildings are supposed to be earth quakeproof.
这些建筑物是耐震建筑才对。
namely 6 million million miles.) Radio waves also travel at the speed of light,
即6万亿英里）。无线电波也是以光速传播的。