すぼまなければならない【窄まなければならない】
subomanakereba naranai
1. Must narrow.; Must be narrowed.
Adjective
#3289862
1. Must narrow.; Must be narrowed.
1. I see; that's right
1. mere; simple
1. National League
1. national chain
1. Becoming; After becoming
1. Became; Got
1. Become; Succeed
1. Not becoming; Not being enough