一粒選り (ひとつぶえり) Japanese meaning | KotomoraMeanings
1
noun
careful selection; picking out the best
Literally 'selecting one grain at a time'; used for meticulous, hand-picked selection of items or people. Often implies choosing only the finest.
一粒選りの選手たちが代表チームに選ばれた。
The hand-picked athletes were chosen for the national team.