Vocabulary consisting only from characters you are able to read

kanji kana meaning randomReload
線形関数 senkeikansuu linear functionmath
比例 hirei proportionsuru
突然 tocuzen abrupt, sudden, unexpected, all at oncejlpt3, mix
三角形の内角のはπである。 sankakukei no naikaku noha π dearu. The sum of inner angles of a triangle is π.math
配達日 baitacubi delivery daymix