to stoop; to lean over; to bend forward
to bend down; to crouch; to squat
to lean over; to lean in
屈んで靴紐を結んだ。
I stooped to tie my shoelaces.
落ちた鍵を拾うために屈んだ。
I bent down to pick up the dropped key.
腰を痛めて屈めなくなった。
I hurt my back and can't bend down.