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
| 单词 | 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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