Polymethylene sebacamide
[化] 聚癸二酰甲二胺
🧩 词语组成解析
n. [化]聚亚甲基
🗣️ 情景例句
then you've got to smile first.
你就得先笑一笑。
Thank you for your letter.
谢谢你的来信。
Maori families enjoy sharing what they own and looking after one another.
毛利人家庭喜欢共同分享他们之所有，并乐于相互关照。