Polymethylene
n. [化]聚亚甲基
🗣️ 情景例句
but in the end the voters will have to decide.
但最后却要由选民来决定。
Your pronunciation is excellent.
你的发音很好。
A talk? What subject should I talk about?
吉姆，讲话？我能讲什么题目呢？