Polys
n. [医]多形核白细胞：多形核白细胞的俗称。见neutrophil( poly的复数形式 ); polyethylene 聚乙烯; polymer 聚合物; copolymer of vinylidene fluoride and tetrafluoroethylene 亚乙烯氟四氟乙烯共聚物（科技符号）
🗣️ 情景例句
Fine, thank you.
很好， 谢谢你 。
It's really a bargain.
租金很便宜。
often hampers the full development of a growing personality.
而匆忙的生活常常妨碍个性的全面发展。