堅貞不屈 be [stand] firm and unyielding; remain faithful [steadfast] and unyielding 在那些遭受囚禁和酷刑的漫長歲月里, 他始終堅貞不屈。 through those long years of imprisonment and torture, he remained faithful and unyielding
忠貞不渝 true to the core; uncompromising honesty; unswerving in one's loyalty; unswervingly loyal
此情不渝 got it right this time; nothing gonna change my love for you; nothing is gone change; nothing's conna change my love for you; nothings gonna change my love for you; you go to my head
此情永不渝 love forever; nothing gonna change my love for you; nothings gonna change my love for you; nothing’s gonna change my love for you
堅持不渝 persistent; persevering; persist in one's purpose 堅持不渝的斗爭 firm and unswerving struggle; 這是件困難的工作, 但如你堅持不渝, 最后是能成功的。 it's hard work but if you hang on you'll succeed in the end. 中國人民堅持不渝地支持全世界被壓迫人民和民族的正義斗爭。 the chinese people perseveringly support the just struggles of the oppressed people and nations the world over
始終不渝 always persist firmly in; unswerving; consistent; steadfast 對黨對人民忠心耿耿, 始終不渝 remain loyal and devoted to the party and the people to the end of one's life