| 单词 | trial run |
| 释义 | trial run noun countable ■a practical test of something new or unknown to discover its effectiveness 试行；试验；试用 •We're holding a tournament in the new ice-hockey stadium, as a trial run for next year's Winter Olympics.我们将在新冰上曲棍球场承办一次锦标赛，为明年举办冬奥会进行一次测试。 |
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