VOA慢速英语:大学音乐节目发现了长期丢失的乡土爵士乐唱片

greeting – n. a message that expresses good wishes to someone

era – n. a period of time that is associated with a particular quality, event, person, etc.

conscious – adj. caring about something specified

grateful – adj. feeling or showing thanks to someone for some helpful act

preserve – v. to keep (something) safe from harm or loss