市中: in the city / 支柱: brace, fulcrum, pillar, strut / 仔虫: larva / シチュー: stew / 死中: fatal situation

暗中: the situation in the dark

(slang) going to or being graduated from the same middle school (中学校)

円柱: cylinder; column

爬虫: reptile

(obsolete) being surprised twice / (obsolete) more specifically, describes the appearance of a woman who has a beautiful figure from behind but has an ugly face

一石六斗: (obsolete) being surprised twice; more specifically, describes the appearance of a woman who has a beautiful figure from behind but has an ugly face

homestay (a form of tourism)

国語: Japanese language

定積分: definite integral