Rudstone
砾屑碳酸岩
🗣️ 情景例句
I think I want to study journalism
我想学新闻学
You'll hurt your thumb, if you don't take care.
你不专心的话，就会伤到你的拇指。
Train compartments soon get cramped and stuffy.
车厢很快就变得拥挤、闷热，