Vocabulary consisting only from characters you are able to read
水力
suirjoku
hydraulic power, water powermix
下る
kudaru
(1)to descend, to go down, to come down, (2)to be handed down (of an order, judgment, etc.), (3)to pass (of time), (4)to surrender, to capitulate, (5)(often in neg. form) to be less than, to be i godan, jlpt3, verb, vintrans
山上
sandžou
mountain topmix
二十日
hacuka
twenty days, twentieth day of the monthjlpt5, toki
日本人
nihondžin
Japanese personmix
人
hito
man, person, human being, mankindhito, jlpt5
一日中
ičiničidžuu
throughout the daytoki