オペレーションズリサーチでした
operēshonzurisāchideshita
1. Operation research was.
Noun
#1944756
1. Operation research was.
1. operation
1. pupil; disciple
1. deci-; 10^-1
1. research
1. operation
1. becoming a pupil (of); becoming an apprentice
1. thank you for the meal; that was a delicious meal
1. Was a green onion.
1. Was a person.; Used to be (someone).