Hauynite
蓝方石
🗣️ 情景例句
Are you feeling better?
你觉得好些了吗？
It is a small flock that has not a black sheep.
家家难免有败类。
suggested an idea on which he had been working for many years to the British Government and industrial circles.
他向英国政府和工业界提出了他研究多年的一项计划。