In stallions and geldings , canine teeth will erupt at about 4-5 years .

种公马和骟马会在4~5岁龄时长出犬齿。

I can give many examples of temperamental geldings and level-headed mares to counteract the fallacy of the hot-headed chestnut mare syndrome .

我可以举出许多喜怒无常的阉马的例子，还可以举出头脑冷静的母马的例子来反驳栗色母马性情暴躁综合症的谬论。