More N1 vocabulary

• 未開みかいsavage land; backward region; uncivilized
• 利息りそくinterest (bank)
• 差し出すさしだすto present; to submit; to tender; to hold out
• 筈はずit should be so
• 貫くつらぬくto go through
• 概説がいせつgeneral statement; outline