Vocabulary consisting only from characters you are able to read

kanji kana meaning randomReload
大分 daibu very, many, a lotjlpt3, jlpt4
止める jameru to stopichidan, jlpt4, verb, vtrans
下がる sagaru to hang down/to abate/to retire/to fall/to step back/(P)godan, jlpt3, jlpt4, verb, vintrans
数学モデル suugakumoderu mathematical modelmath
番する bansuru hlídat, mít hlídkuleda1