'id', 'Question_id' => '提问id', 'Assistant_id' => '应答id', 'Object' => '应答对象', 'Created_time' => '应答时间', 'Model' => '应答模型', 'Usage_json' => 'usagejson', 'Choices_json' => '应答实体json', 'Createtime' => '创建时间', 'Question.user_id' => '提问用户', 'Question.content' => '提问的问题' ];