instep girth背围;脚背宽度;脚背肥度;违围
instep leather鞋面革
instep arch人脚弓
embrotheridered instep绣花鞋面
Or Instep或脚背
instep line跗线
instep bones足背骨
instep kick脚背踢球;用脚背踢球;脚前踢球
Instep bruise脚背挫伤
N-COUNT(可数名词) Your instep is the middle part of your foot, where it arches upward. 脚背