Benzfluorene
[机] 苯并芴
🗣️ 情景例句
Take care, and have a nice flight.
请保重！祝你一路顺风！
How long will it take for a telegram to get to California?
你把电报传到加州要多长时间？
I do not want to make it a school for rich children only.
我不想把它办成专供有钱人家的儿童来上学的学校。