Methaldehyde
四聚乙醛
🗣️ 情景例句
I guess we were thinking the same thought.
我想我们的心意相同。
I succeeded because I willed it; I never hesitated.
我成功是因为有决心，从不犹豫。
Before they were replaced by steamships,
在蒸汽船取代帆船之前。