engine room
noun [ C ] uk/ˈen.dʒɪn ˌruːm/ us/ˈen.dʒɪn ˌruːm/
(ROOM)
发动机房;轮机舱
the place on a ship where the engine is
(FOOTBALL PLAYER)
（足球）中场（球员）
in football, a midfield player or group of midfield players that have a lot of energy and strongly influence the level of activity within the team
Pearce has been the engine room of the team this season. 这个赛季皮尔斯一直是该队的中场发动机。