Kalchoids
铜锡锌三元合金
🗣️ 情景例句
Winter in Beijing is too cold.
北京的冬天很冷。
She began playing the violin when she was nine.
她从九岁就开始练习小提琴。
This wonderful plane can carry seven passengers.
这架奇妙的飞机可以载7名乘客。