Vocabulary consisting only from characters you are able to read
生活
seikatsu
living, life (one's daily existence), livelihoodjlpt3, suru
円の曲率は定数である。
en no kyokuritsu ha teisuu dearu.
The curvature of a circle is constant.math
段階
dankai
stairs; (n) stairs; grade, level, stage, class, phase, steps, order, gradationmix