Vocabulary consisting only from characters you are able to read
冬季
touki
(season of) wintermix
恒常性
koujousei
constancy, homeostasis, homoeostasismix
決定
kettei
decision, determinationmix
二人
futari
two persons, two people, pair, couplejlpt5
留守番
rusuban
(1)care-taking/house-sitting/house-watching/ (2)caretaker/house-sitter/(P) leda1, suru