关于“be sb's duty (to do sth)/have a duty (to do sth)”主题的英语写作方法、技巧、句型及翻译-英语写作词典

单词	be sb's duty (to do sth)/have a duty (to do sth)
例句	be sb's duty (to do sth)/have a duty (to do sth) see ⇨ SHOULD/OUGHT TO 1
随便看	bomber bombshell bona fide bond bone bone of contention bone up on bones bonfire bonk bonus bony boo boob book booked booking BOOKS bookworm boom boom/boom out booming boon boondocks boost

英语写作词典收录了19312条英语写作万能句型词条，按主题分类，基本涵盖了全部常用单词及词组的写作技巧和方法，是英语写作的有利工具。