Methaldehyde
四聚乙醛
🗣️ 情景例句
So I know.
所以我了解这些。
Is there anything you'd like to know?
你想知道什么？
Even seemingly insignificant remains can shed interesting light on the history of early man.
即使看起来微不足道的遗物，也可能揭示人类早期历史的一些有趣的内容。