Vocabulary consisting only from characters you are able to read

kanji kana meaning randomReload
目上 meue superior/superiors/senior/(P)jlpt3, jlpt3
ike pondjlpt5, leda1, shizen
~年 ~nen makes preceding number a yearjlpt5, toki
心室 shinshitsu ventriclemix
中学生 chuugakusei junior high school studentgakkou