Vocabulary consisting only from characters you are able to read

kanji kana meaning randomReload
小さい世界 ちいさいせかい small worldmix
何度か なんどか several times, one or twicemix
実効 じっこう practical effect, efficacy, efficiencymix
南北 なんぼく south and northmix
定数 ていすう constantmath