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用件, ようけん
1. business, thing to be done, something that should be performed, information that should be conveyed
业务;要做的事情;应该执行的事情;应该传达的信息
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