instep
US /ˈɪn.step/
UK /ˈɪn.step/

1.
腳背
the part of a person's foot between the toes and the ankle, where the arch is highest
:
•
He kicked the ball with the instep of his foot.
他用腳背踢球。
•
The shoe was too tight across the instep.
這雙鞋在腳背處太緊了。
腳背
the part of a person's foot between the toes and the ankle, where the arch is highest