Polyoxymethylene
n. [化]聚甲醛
🗣️ 情景例句
This is the big moment.
这可是关键时刻。
What do economists say about the present crisis?
经济学家们对于现在的危机做何说法？
I argued that if I spent less time exhausting myself at exercises in the morning,
我辩解说，早晨少耗费精力锻炼，