VOA慢速英语:A Visit with History: Gettysburg National Military Park

liberty - n. the state or condition of people who are able to act and speak freely

dedication - n. a feeling of very strong support for or loyalty to someone or something

devotion - n. a feeling of strong love or loyalty

sculpture - n. a piece of art that is made by carving or molding clay, stone, metal, etc.

canvas - n. a specially prepared piece of cloth on which a picture can be painted by an artist

conservation - n. the things that are done to keep works of art or things of historical importance in good condition