Vocabulary consisting only from characters you are able to read
他人
たにん
another person/unrelated person/outsider/stranger/(P)leda1
都度
つど
each (every) time/whenever/(P)leda1
換わる
かわる
(1)to succeed, to relieve, to replace, (2)to take the place of, to substitute for, to take over for, to represent, (3)to be exchanged, to change (places with), to switch godan, jlpt3, verb, vintrans