n.足背，足弓，鞋面

原形：instep复数：insteps

She stepped into the room gracefully, her instep barely touching the ground.
她优雅地走进房间，脚尖几乎不着地。
The dancer's flexibility allowed her to land with perfect form, her instep meeting the floor almost silently.
舞者的柔韧性使她落地动作完美，脚尖几乎无声地触地。
In the ballet class, the instructor emphasized the importance of keeping a strong arch in the instep for balance and turnout.
在芭蕾课上，老师强调了脚尖部位（instep）保持良好弧度以维持平衡和外展的重要性。
After spraining his ankle, he had to wear a supportive brace on his instep to prevent further injury.
踝关节扭伤后，他不得不在脚尖部位戴一个支撑性护具，以防进一步受伤。
The designer's new collection featured shoes with exaggerated insteps, adding a futuristic touch to classic styles.
设计师的新系列鞋子有着夸张的脚尖部分，给传统款式增添了未来感。
The athlete practiced toe points, stretching her instep to improve her pirouettes.
运动员练习脚趾点地，拉伸脚尖（instep），以提升她的转体动作。
She carefully inspected the new ballet shoes, ensuring the proper fit around her instep.
她仔细检查新舞鞋，确保脚尖部位合身。
The acrobat's daring feats required an incredibly flexible instep, able to support his weight during seemingly impossible stunts.
杂技演员的惊险表演需要极其灵活的脚尖，能支撑他在看似不可能的动作中保持平衡。
The dancer's training focused on strengthening her instep muscles to enhance her pointe work.
舞者训练的重点在于增强脚尖部位的肌肉，以提高她的足尖技巧。
The surgeon performed the delicate operation with precision, avoiding any damage to the patient's instep.
外科医生进行手术时非常精确，以免损伤病人的脚尖部位。