Polyyne
聚炔烃
🗣️ 情景例句
Could you put that into more specific terms?
您能不能说得明确一点？
Are you crazy?
你疯了吗？
When you have finished your experiment, please tidy the lab and put everything back in the cupboards.
做完实验后，请你们把实验室整理好，并把所有的东西放回器皿柜。