starting blocks is starting block's Plural Form

starting block

US [ˈstɑrtɪŋ ˌblɑk]
UK [ˈstɑː(r)tɪŋ ˌblɒk]
  • n.起跑器
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Plural Form:starting blocks  
starting blocks
n.
1.
起跑器the two blocks on the ground that runners push their feet against at the beginning of a race

Sample Sentence

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