| 单词 | testing ground |
| 释义 | testing ground (once / 51613 pages) n WORD FAMILY testing ground: testing grounds USAGE EXAMPLESHe was able to bring similar improvement in Oakland, but that city also proved a testing ground for his mettle. Washington Post(Nov 22, 2016) Without first testing grounds, he added, a formalized plan cannot be completed. Washington Times(Nov 19, 2016) The state became a testing ground for local laws after Warren County passed the nation's only county ordinance in December 2014. Reuters(Nov 18, 2016) n a region resembling a laboratory inasmuch as it offers opportunities for observation and practice and experimentation the new nation is a testing ground for socioeconomic theories Syn|Hyper laboratory region a large indefinite location on the surface of the Earth |
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