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Benzene.
Benzoyl.
Late 19th century. Symbolic abbreviation for benzenemid 19th century. Symbolic abbreviation for benzoyl.
Late 19th century. Symbolic abbreviation for benzene<br>mid 19th century. Symbolic abbreviation for benzoyl.
礼仪网英汉双解词典包含236457条英汉翻译词条，涵盖了常用英语单词及词组短语的翻译及用法，是英语学习的必备工具。