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Until recently, most of the research was conducted, was done using questionnaires.
直至最近，多数完成的研究，使用的都是问卷方式。
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$firstVoiceSent
- 来自原声例句
Until recently, most of the research was conducted, was done using questionnaires.
直至最近，多数完成的研究，使用的都是问卷方式。
应用推荐