义务的英文翻译

英文翻译：devoir; duty; incumbency; mortgage; obligation; onus; volunteer\n【经】 engagements; liability; obligation\n相关词组:\n 尽义务\n 义务的\n 义务警员\n 义务论\n 义务人\n 有义务\n 有义务的\n 瞻养义务免费