VOA慢速英语:John Brown Raids Harpers Ferry

execute – v. to kill

extremist – n. a person with strong religious or political beliefs who acts in an extreme or violent way.

renew - v. to make something new, fresh, or strong again

seize – v. to take quickly by force; to take control of quickly; to arrest

treason – n. the act of fighting against one’s own country or of helping its enemies