instep

US /ˈɪn.step/
UK /ˈɪn.step/
"instep" picture
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.
他用腳踢球。
The shoe was too tight across the instep.
這雙鞋在腳處太緊了。