Polynonamethylene resorcinaldiglycolate
[化] 聚间苯二酚缩二羟基乙酸亚壬基酯
🗣️ 情景例句
You seem to have some reservations.
看起来你还有些犹豫。
There's no such thing as a free lunch.
天下没有白吃的午餐。
Thank you .It was very nice of you to help me.
谢谢你帮我，你真好。