to boycott classes, racial hate, racist. 罷課, 種族仇恨, 種族主義者

St. Olaf College students fill Tomson Hall to boycott classes and demand action and dialogue after numerous acts of incidents of racial hate on campus, Monday, May 1, 2017 in Northfield, Minn. Hundreds of students boycotted classes at St. Olaf College on Monday, instead packing an administration building to protest a rash of racist and threatening messages left around campus. (Elizabeth Flores/Star Tribune via AP)
Police set ablaze at May Day demos and more: May 1 in photos
https://www.yahoo.com/news/police-set-ablaze-may-day-slideshow-wp-210912284.html