Vocabulary consisting only from characters you are able to read

kanji kana meaning randomReload
部屋代 へやだい room rentjlpt3, uchi
下水 げすい kanál, kanalizaceleda1
真ん中 まんなか middle, centrejlpt4
歯石 しせき dental calculus (calcified deposits that accumulate on the teeth), tartar (of the teeth)mix
声楽 せいがく vocal musicmix