“…In language acquisition, phonological processing is also important because, to the extent it can be observed, it allows researchers to understand learners' real-time use of L2 phonological knowledge during comprehension of natural speech in the target language. Many studies on L2 phonology have examined learners' perception and production of L2 phones, which represent the product of L2 phonological knowledge (e.g., Baker & Trofimovich, 2006;Best & Tyler, 2007;Derwing & Munro, 2015;Díaz-Campos, 2004;Flege, 1995;Lord & Harrington, 2013;Saito et al, 2016). Few studies to date, however, have investigated learners' use of L2 phonological knowledge in real time, which represents the process of L2 phonological knowledge.…”