Noun:

1. one of an interracial group of civil rights activists who rode buses through parts of the South in order to protest racial segregation

freedomsn.自由；五大航权（freedom的复数）freedomn.自由；直率；特许，特权freedom form vibration抗振性Freedom of assembly.答：集会自由。freedom of the library自由使用图书馆freedom-loving people热爱自由的人民freedom without control自由放任freedom degree of trade贸易自由度freedom degree of robot机扑的自由度freedom of the open sea[法] 公海自由freedom characteristics自由特征freedom of expatriation放弃国籍自由

1. Over300 freedom riders arrest in Jackson, Mississippi, in may and June1961 were sentenced.
   一九六一年的五、六月在密西西比州杰克森市被捕的三百多个参加自由行示威的人都被判刑了。