trial runs is trial run's Plural Form

trial run

US 
UK 
  • na.试车[航]
Plural Form:trial runs  

Sample Sentence

Definition:
Category:AllAll,OralOral,WrittenWritten,TitleTitle,TechnicalTechnical
Source:AllAll,DictionaryDictionary,WebWeb
Difficulty:AllAll,EasyEasy,MiddleMiddle,HardHard