Polypentamethylene adipate
[化] 聚己二酸亚戊基酯
🧩 词语组成解析
己二酸
🗣️ 情景例句
I'm ... very proud of you.
我很……以你为荣。
What are you so excited about?
什么事让你如此兴奋？
Happy birthday! he said. Here's your present.
“生日快乐！”他说，“这是给你的礼物。”