Vocabulary consisting only from characters you are able to read
赤み
akami
reddish tinge/tinge of red/slight redness/blushmix
蛇
hebi
(1)snake, (2)serpent, large snake; (3)snake, (4)serpent, large snake; (5)snake, (6)serpent, large snake; (n) (7)snake, (8)serpent, large snake doubutsu
低下
teika
fall, decline, lowering, deterioration, degradationsuru
水力
suiryoku
hydraulic power, water powermix