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单词 test run
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释义  ˈtest run noun [countable]  an occasion when you try doing something or using something before you really need to use it, to make sure everything works properly 〔对新事物的〕初步试验，试行Examples from the Corpustest run• The visiting locomotives will progressively arrive during the Steam Festival and after a test run will be used on weekend passenger services.• This short crossing would be a test run.• Switch off, disconnect and cover A test run is important.• Burfoot took a pair of Puma Concepts for a test run and said he liked them.• The cameras were in court for a test run, not for broadcasting.• The generator failed three times during its test run.From Longman Business Dictionarytest-runˈtest-run noun [countable] an occasion when a new machine, piece of equipment, or procedure is tested to find out whether it works correctlyFire during a test-run seriously damaged an experimental Japanese supertrain.ˈtest run nounChineseSyllable  when try Business using an something Corpus occasion or something doing before you
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更新时间：2026/7/24 11:47:42