Vocabulary consisting only from characters you are able to read

kanji kana meaning randomReload
sumi inkmix
減らす herasu to abate, to decrease, to diminish, to shortengodan, jlpt3, verb, vtrans
常微分方程式 joubibunhouteishiki ordinary differential equationmath
周到 shuutou scrupulous, meticulous, carefulmix
踏む fumu to step ongodan, jlpt4, verb, vtrans