onusglossary / ONUS onus (oh-n[schwa]s).1. A burden; a load.2. A disagreeable responsibility; an obligation.3. ONUS PROBANDI. 词条贡献者 译者Scott,毕业于一所旨在培养高级翻译专业人才的翻译院校,擅长翻译各种与环境诉讼相关的法律文件。