1、Sidebone is a condition where there is abnormal bony growth on the side of a horse's foot.
侧骨是指马蹄骨侧面异常的骨质增生的情况。

2、The veterinarian diagnosed the horse with sidebone and recommended appropriate treatment.
兽医诊断出马患有侧骨症，并建议进行适当的治疗。