Polymethylene
n. [化]聚亚甲基
🗣️ 情景例句
What's your job like?
你的工作怎么样？
Oh! I'm sorry. I wish you could stay.
哦，真遗憾，要是你能多呆一会儿该多好。
Lake Baikal is the deepest of all the lakes in the world.
贝加儿湖是世界上最深的湖泊。