Vocabulary consisting only from characters you are able to read
入門書
njuumonšo
primer, manual, introductory bookmix
合格
goukaku
success/passing (e.g. exam)/eligibility/(P)gakkou, jlpt3
主に
omoni
mainly, primarilymix
食道
šokudou
esophagus, gullet, esophagealmix