Abstract This Special Issue brings together the current work of well-established and well-known researchers in the field of language acquisition from a formal approach across several languages and of bilingual acquisition (2L1 and adult simultaneous and successive bilinguals), focusing on the syntax, semantics and pragmatics of different linguistic phenomena. Specifically, the four papers that will encompass this Special Issue together with an afterword paper written by a leading researcher in the field, Itziar Laka, discuss two main issues for current linguistic theory, both related, in this discussion, to Spanish: on the one hand, how do data and phenomena from the acquisition of different Romance languages inform and shape generative linguistic theory? And, on the other, how does generative linguistic theory frame and constrain research on the acquisition of Romance languages? To that end, divergent bilingual populations are used in these studies, which present longitudinal or cross-sectional data using a diverse range of methodologies (more on this within the individual summaries).

中文翻译：

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语言习得与语言理论：当语言理论遇到经验数据时

摘要本期特刊汇集了多种语言的正式研究方法和双语习得（2L1以及成人同时和连续双语）的语言习得领域中知名人士的最新研究成果。不同语言现象的语义和语用。具体来说，将涵盖本期特刊的四篇论文以及该领域的领先研究人员Itziar Laka撰写的后记论文，讨论了当前语言理论的两个主要问题，在本次讨论中，这两个问题均与西班牙语有关：在一个问题上一方面，来自不同浪漫史语言习得的数据和现象如何为生成语言理论提供信息和塑造？另外，生成语言理论如何构架和限制对浪漫语言习得的研究？为此，在这些研究中使用了不同的双语人群，这些人群使用不同的方法来展示纵向或横断面数据（有关更多信息，请参见各个摘要）。