Modacrylic
n. 人造纤维之一种
🗣️ 情景例句
Well, Grandpa will be disappointed, too.
爷爷也会感到失望。
It's a worthwhile cause.
这是值得为之奋斗的事业。
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。