Tra từ testing ground - Từ điển Oxford Advanced Learner 8th

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Từ điển Oxford Advanced Learner 8th

testing ground ˈtesting ground f32 [testing ground testing grounds] BrE NAmE noun 1. a place or situation used for testing new ideas and methods to see if they work •Eastern Europe has been a testing ground for rapid economic reform. 2. a place used for testing machines, etc. to see if they work correctly •a piece of land in use as a tank testing ground