The farm specialized in raising champion racehorses, and their most valuable asset was a proven broodmare.

該農場專門飼養冠軍賽馬，他們最寶貴的資產是一匹久經考驗的種母馬。

After a successful racing career, the mare was retired to become a broodmare.

在成功的賽馬生涯之後，這匹母馬退役成為一匹種母馬。