How do you say euthanasia in Chinese?
— 安樂死, 安乐死 (ānlèsǐ); 安乐死; 安乐死

Generic synonyms for euthanasia in Chinese
kill殺死, 杀死 (shāsǐ), 殺, 杀 (shā), 戕殺, 戕杀 (qiángshā)