Verdelite
电气石
🗣️ 情景例句
You are always straying from the subject.
你说话总爱跑题。
To wave your arms
振臂，挥手
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。