Vocabulary consisting only from characters you are able to read

kanji kana meaning randomReload
三角関数 sankakukansuu trigonometric functionmath
共同 kjoudou doing together (as equals), sharing, common (land, etc.), joint (statement, etc.), cooperation, co-operation, collaboration, associationsuru
大差 taisa great differencemix
少ない sukunai few, a littleleda1
母の日 hahanohi Den matekleda1, namae