サンクコストです
sankukosutodesu
1. Sunk cost.
Noun
#734009
1. Sunk cost.
1. cost
1. If/when awakened; If/when made to happen
1. If/when left over; If/when remaining
1. Costly; Of cost
1. by cost; at the cost of
1. exceeds; surpasses
1. If/when it causes; If/when it brings about
1. If/when I move; When I move
1. Cost; Expense