ryūikichisuidattara
1. If/when dealing with river basin management:; If/when river basin management were done:
Noun
1. If/when dealing with river basin management:; If/when river basin management were done:
1. if it's the case
1. drainage basin; catchment basin
1. river management; river improvement
1. not be found
1. If it comes out; When it comes out
1. If/when topped; If/when crowned
1. If/when shown; If/when I show
1. After; When…passes