instep
instep
noun
noun
- the part of a person's foot between the ball and the ankle
脚背；足弓
■the part of a shoe which fits over or under this part of a foot
鞋面；足弓部鞋底
■a thing shaped like the inner arch of a foot
形似内足弓的物件
- late Middle English: of unknown origin; compare with West Frisian ynstap 'opening in a shoe for insertion of the foot'
考试词汇表
