| 释义 | blocking sled noun[ C ]
 uk /ˈblɒk.ɪŋ ˌsled/ us /ˈblɑː.kɪŋ ˌsled/(alsosled)
 a frame with soft material on the front, which has strips of wood or metal at the bottom that allow it to move, used by American football players to practise blocking(= pushing opponents backwards):
 The school has no blocking sleds for the American football team to use.
 Each player had to hit a sled and drive it back five yards.
 He would spend extra time after practice running sprints and pushing blocking sleds.
 We spent hours in practice smashing into blocking sleds.
 The blocking sleds were old and badly rusted.
 SMART Vocabulary: related words and phrases
 American football
 attempt
 audibilize
 back judge
 blitz
 blocker
 bootleg
 dime
 flare
 formation
 forward pass
 forward progress
 free play
 free safety
 point after
 pulling blocker
 pump-fake
 punt
 return specialist
 returner
 turnover
 
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