I would first of all like to thank the many authors who have provided commentaries on my keynote article ‘Microvariation in multilingual situations: The importance of property-by-property acquisition’ (Westergaard, 2021a). The keynote has generated significant and stimulating debate about central issues on crosslinguistic influence in multilingual language acquisition, and I find it especially welcome that the majority of the commentaries support and enhance the main idea of the keynote, viz. that L2/L3/Ln acquisition takes place as a step-wise process, property by property. The commentaries have provided supporting arguments, additional data, and suggestions for further research, but also new questions and critical comments. This response is divided into sections focusing on the following issues: Full transfer and the notion of copying, the definition of linguistic proximity, some terminological issues, research methodology, predictions, empirical support, and possible misinterpretations.

中文翻译：

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L3习得和跨语言影响作为共同激活：对主题演讲“多语种情况下的微变：逐属性获取的重要性”的评论回应

首先，我要感谢许多作者对我的主题演讲“多语种情况下的微变：逐属性获取的重要性”提供了评论（Westergaard，2021a）。主题演讲引起了关于多语言习得中跨语言影响的中心问题的重大而令人兴奋的辩论，我感到特别欢迎的是，大多数评论都支持和增强了主题演讲的主要思想，即。L2 / L3 / Ln的获取是逐步进行的，逐个属性进行。评论提供了支持性的论据，其他数据和进一步研究的建议，还提供了新的问题和批评意见。此响应分为以下几个部分，分别针对以下问题：完全转移和复制的概念，