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兼, けん
1. cum (e.g. bedroom-cum-study), and (concurrently; e.g. chauffeur and secretary), in addition to, at the same time
兼(例如:卧室兼书房),以及(同时;例如:司机兼秘书),此外,同时
は
1. indicates sentence topic
2. indicates contrast with another option (stated or unstated)
3. adds emphasis
指示句子的主题;表示与另一选项(无论是否明确提及)形成对比;表示强调