Nitrosoethane
亚硝基乙烷
🗣️ 情景例句
Where do you usually spend your weekends?
你通常在哪度过你的周末？
It's the year of 1999.
今年是1999年。
What a pity! I'm afraid that if you've lost it , you must pay for it, said Miss Yang.
“真可惜！如果你真的弄丢了，恐怕你得付钱赔偿，”杨小姐说。