n.胼胝；无情；老茧皮；硬结

原形：callosity复数：callosities

The farmer developed callosities on his hands from years of hard work in the fields.
这位农民因为多年在田里劳作，手上长满了老茧。
She noticed a callosity forming on her heel due to wearing high heels every day.
她发现由于每天都穿高跟鞋，脚后跟上开始长出硬茧。
The sailor's palms were thick with callosities from gripping the ropes for so many years.
水手的手掌因常年握紧绳索而布满了厚实的老茧。
Callosities can be a sign of a more serious medical condition, such as diabetes or peripheral artery disease.
老茧可能是更严重疾病（如糖尿病或周围动脉疾病）的迹象。
Athletes often develop calluses on their feet to protect against blisters during intense training.
运动员在高强度训练中常常会在脚底形成老茧以防止起水泡。
The nurse gently removed the callus from the patient's toe, being careful not to cause pain.
护士轻轻地从病人的脚趾上除去老茧，以免引起不适。
In ancient times, the presence of callosities on a person's hands was considered a sign of strength and hard work.
在古代，人们认为手上有老茧是力量和勤劳的象征。
People with arthritis may experience an increase in callosities due to joint inflammation and friction.
关节炎患者可能会因为关节发炎和摩擦而产生更多老茧。
The shoe manufacturer designed shoes with extra cushioning to reduce the formation of callosities for marathon runners.
鞋业制造商设计了带有额外缓冲的跑鞋，以减少马拉松运动员脚部老茧的形成。
A dermatologist can recommend treatments for excessive callus buildup, like medicated creams or specialized tools to remove them.
皮肤科医生可以建议治疗过度老茧的方法，如使用药物软膏或专门的去除工具。