Monomers
[化学] 单体
🗣️ 情景例句
Yes?
是吗？
Beard the lion in his den.
老虎头上捉虱；太岁头上动土。
I got up early next morning hoping to find that the ants had given up in despair.
第二天早上，我起床后希望看见蚂蚁已因无望而放弃了尝试，