求翻译：我国语音实验和二语语音教学的研究成果过于集中在对外汉语教学，ESL的二语语音实验研究很少，我们的研究正好可以在这个相对研究不足的领域添砖加瓦。是什么意思？

Experimental studies of voice and voice teaching second language is too focused on foreign language teaching , second language ESL little voice experimental study , our research just can contribute in this relatively inadequate research fields.

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Our country pronunciation experiment and two language pronunciation teaching research results too concentrate in the teaching Chinese as a foreign language, the ESL two language pronunciation experimental study are very few, our research happen to may the domain which is insufficient in this relativ

Speech research and research in second language teaching is too focused on teaching Chinese as a foreign, and ESL second language speech research few studies, our research can be building blocks in this research field.

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