Vocabulary consisting only from characters you are able to read
難問
nanmon
perplexity, difficult question, difficult problemsuru
民族
minzoku
people, race, nationmix
言い訳
iiwake
(1)excuse, (2)explanation suru
中学生
čuugakusei
junior high school studentgakkou
重なり合う
kasanariau
to lie on top of each other, to overlap, to pile upgodan, verb