词汇 | proving ground |
释义 | proving ground noun [ C usually singular ] uk/ˈpruː.vɪŋ ˌɡraʊnd/ us/ˈpruː.vɪŋ ˌɡraʊnd/ (理论、机器等的)实验场,试验地;实验(或试验)场合 a situation or place where something such as a new theory or machine can be tested |
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