Vocabulary consisting only from characters you are able to read
二人
ふたり
two persons, two people, pair, couplejlpt5
手入れ
ていれ
(1)repairs, maintenance, tending, trimming, grooming, (2)crackdown, (police) raid suru
下る
くだる
(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
水力
すいりょく
hydraulic power, water powermix