Sharpstone
尖角石; 尖角岩屑
🗣️ 情景例句
Was it serious?
病得很重吗？
Do not sell the bear's skin before you have caught the bear.
熊未到手休卖皮（勿过早乐观）。
I had forgotten all about the snails when Robert suddenly said that I must stay to dinner.
我把蜗牛的事已忘得一干二净，罗伯特突然提出一定要我留下来吃晚饭，这才提醒了我。