Diazidoethane
二叠氮基乙烷
🗣️ 情景例句
Where do you like to live, in the city or in the country?
你喜欢住在城市还是乡村？
Is this a daily flight?
这是每日航班吗？
Tickets, please! Tickets, please!
请出示车票！请出示车票！