Desmodur r
[化] 德斯莫杜尔R
🧩 词语组成解析
聚氨基甲酸酯类粘结剂
🗣️ 情景例句
Good morning. Would you please bring me some breakfast?
早上好，可否为我送点早餐？
If we had been more careful, we would be getting much better results now.
如果我们更为细心的话，成绩会更好。
Why, you may wonder, should spiders be our friends?
你可能会觉得奇怪， 蜘蛛怎么会是我们的朋友呢？