rigorous adjective (CAREFUL)
词库:同义词和关联词
rigorous adjective (SEVERE)
rigorously
adverb uk
/ˈrɪɡ.ər.əs.li/ us
/ˈrɪɡ.ɚ.əs.li/
(rigorous在剑桥高级学习词典和同义词词典的解释 ©剑桥大学出版社)