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pilot-study英英字典_pilot-study剑桥英语解释_pilot-study柯林斯英文解释_94生活常识网有道词典
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pilot-study

P 开头单词

柯林斯词典

    pilot study

  • 1. N a small-scale experiment or set of observations undertaken to decide how and whether to launch a full-scale project 初步研究

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