VOA慢速英语:Want a Response to Your Email? Follow These Tips.

favor a kind or helpful act that you do for someone

subject line – n. the place in an e-mail where you can type what the e-mail is about

sweet spot – n. informal : the best point or combination of factors or qualities.

tone style or manner of expression in speaking or writing

positive – adj. a : having a good effect : favorable a positive role model b : marked by optimism the positive point of view

negative – adj. not hopeful or optimistic : expressing dislike or disapproval

neutral – adj. not strong in opinion or feeling

appropriate – adj. especially suitable

acquaintance – n. someone who is known but who is not a close friend

colleague – n. a person who works with you : a fellow worker

annoying – adj. to cause (someone) to feel slightly angry

creepy – adj. strange or scary : causing people to feel nervous and afraid (to creep someone out)

read between the lines – phrase : look for or discover a meaning that is hidden or implied rather than explicitly stated.