Pentabromination
五溴化反应
🗣️ 情景例句
Hello, thank you very much for coming to my home.
你好，多谢你大驾光临我的寒舍。
A standard one. Replacement during the first year if all rules for proper use have been followed.
有一个原则，如果在一年内符合各种使用规定，就可更换。
Gandhi was thrown off a train and later a mail bus for insisting on travelling in the whites-only section.
旅行时，甘地因为坚持要坐白人座位，曾经先后两次被从一列火车与一辆邮车里扔出来。