Polyesterification
n. 聚酯
🗣️ 情景例句
Thanks so much.
非常感谢。
In an enemy spots are soon seen.
敌人的缺点容易找。
and he had seen there evidence enough to overthrow Aristotle and Ptolemy together.
观察到的论据足以把亚里士多德和托勒密一起推翻。