Polymethylene derivatives
[建] 聚甲烯衍生物
🧩 词语组成解析
n. [化]聚亚甲基
派生物
🗣️ 情景例句
for reading to the kids in the hospital.
为住院的孩子朗读。
Please try to estimate the extent of the damage.
请估计一下受损害的程度吧。
I'm afraid we're going to be in Shanghai that day. I hope you all have a good time.
恐怕到那天我们将在上海了。我祝你们玩得痛快。