Dinitrofluorobene
二硝基氟苯
🗣️ 情景例句
He has had various experiences in his life.
他的生活经验丰富。
Do you usually do arithmetic on Sunday?
你通常在星期日做算术吗？
At the same time, a number of teenagers climbed on to the dish and held a little party of their own.
就在这个时候，许多十几岁的孩子爬盘子举行他们自己的集会。他们跳起了舞，盘子难以承受。