Polymethylene
n. [化]聚亚甲基
🗣️ 情景例句
we love having you here.
我们喜欢你们住这里 。
You're so lame!
你真笨！
Look! There's Meimei! She's very strong. She's lifting that ladder.
瞧！梅梅在那儿。她很强壮。她举着把梯子。