broodmare

例句：

1. 1.The broodmare was bred to produce the next generation of horses.
   这头母马被培育出来繁殖下一代的马。
2. 2. The mare is a valuable asset in the breeding industry.
   这头母马在育种行业是宝贵的资产。
3. 3.The filly is still young and needs time to mature before she can be bred.
   这头小母马还很年轻，需要时间成熟才能被繁殖。