Vocabulary consisting only from characters you are able to read
先ほど
さきほど
some time ago, not long ago, just nowmix
真っ暗
まっくら
(1)total darkness, pitch dark, (2)bleak future, poor prospects mix
食道
しょくどう
esophagus, gullet, esophagealmix
組成
そせい
composition, constitutionsuru