VOA慢速英语:'The Gift of the Magi,' by O. Henry

negotiate - v. to discuss something formally in order to make an agreement

immovable - adj. not able to be moved : firmly fixed in place

expression - n. the way someone's face looks that shows emotions and feelings

magi - n. the wise men, generally assumed to be three in number, who paid homage to the infant Jesus. Matt. 2:1–12.