| 单词 | test run | 
| 释义 | Word Frequency test run(tɛst rʌn) noun if you give a machine or system a test run, you try it out to see if it will work properly when it is actually in use  Japan's space ambitions have had a set-back after the failure of an engine in a testrun.  The vote was seen as a test run for elections to come. | 
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