Polyesters
(polyester 的复数) n. 聚酯\\n[化] 聚酯
🗣️ 情景例句
Thank you, Susan.
谢谢你， Susan。
If you have time,will you call me tomorrow?
如果你有时间，你明天将打电话给我？
Modern industry is based on the conception of the maximum production at lowest cost,
以最低成本获取最多产品，