Iecnum
铜镍合金
🗣️ 情景例句
May I have your name, Please?
请问尊姓大名？
He might not be here.
他可能不在这儿。
By 1820 the population of New York had grown to about 125,000, making it the largest city in the USA.
到1820年，纽约市的人口增长到12。5万人左右，使它成了当时美国最大的城市。