feeder club
noun [ C ] uk/ˈfiː.də ˌklʌb/ us/ˈfiː.dɚ ˌklʌb/
（为比自己级别高的俱乐部培养球员的）中转俱乐部，结盟球会
a football club from a low division that provides training and experience for young players, with an agreement that successful players can leave to join a club in a higher division