Ledrit
铅黑铜; 铅黄铜
🗣️ 情景例句
Good luck and best wishes on your career move.
祝你新的事业一帆风顺！
Make me a cup of coffee, will you?
给我冲杯咖啡，好吗？
they aroused great interest at the time, they had important theoretical consequences,
这些观察在当时引起了人们极大的兴趣，具有重要的理论意义，