field trial
英
美
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Noun:
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a test of the performance of some new product under the conditions in which it will be used
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a contest between gun dogs to determine their proficiency in pointing and retrieving
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a test of young hunting dogs to determine their skill in pointing and retrieving
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以上内容独家创作,受著作权保护,侵权必究
海词词典,十七年品牌