| 单词 | trial-ground |
| 释义 | > as lemmastrial-ground trial-ground n. ΚΠ 1878 R. Hunt & F. W. Rudler Ure's Dict. Arts (ed. 7) IV. 323 The Mont Cenis tunnel formed the greatest trial-ground ever brought to the attention of inventors and makers of either rock-drills or air-compressors. 1909 West. Gaz. 29 May 9/4 Arrangements have been made for aeroplane flights..at Wembley, where an excellent stretch of suitable trial-ground exists. < as lemmas |
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