Vocabulary consisting only from characters you are able to read

kanji kana meaning randomReload
食べ残し たべのこし leftover food (esp. on one's plate at the end of a meal)mix
人類 じんるい mankind, humantityhito
必要(な) ひつよう(な) (1)necessary/needed/essential/indispensable/(n) (2)necessity/need/requirement/(P) adj, leda1
世代 せだい generationleda1
両立 りょうりつ compatibility, coexistence, standing togethersuru