円柱: cylinder; column

爬虫: reptile

in the middle of a conversation; on the other line of the phone

the dead of winter, the middle of winter

感知: perception / 完治: complete recovery (from an illness) / 寒地: cold area / 関知: one's knowledge on a particular subject / 換地: the act of exchanging land; the land being exchanged

完治: to recover completely (from an illness) / 関知: to have knowledge on a particular subject / 換地: to exchange land

person in charge; person responsible

frontier pass / close / relation / barrier / gate

barrier, gate / to concern; to relate to; connection

barrier, gate