Vocabulary consisting only from characters you are able to read

kanji kana meaning randomReload
七日 nanoka seven days, the seventh day of the monthjlpt5, toki
aida a spacejlpt4, leda1, toki
二十日 hacuka twenty days, twentieth day of the monthjlpt5, toki
~週間 ~šuukan week(s) (time interval)jlpt5, toki
週間 šuukan týdenleda1, toki