英语词汇obligatory的意思、翻译、用法及例句-英语用法大全

词组	obligatory
释义	obligatory It is obligatory that he be 见 essential 知识来源：赵振才编著.英语常见问题解答大词典.哈尔滨：黑龙江人民出版社.1998.第831页.
随便看	trial and error is/are troops trouble truly (疑问句中的truly) try and... try to do/manage to do try to do/try doing turn turn on turn to (prep.)/turn to (adv.) twice twice two two and two is/are two thirds is/are two-thirds/two thirds types of U unattached infinitive(无依附动词不定式) unattached participle(无依附分词) uncountable nouns(不可数名词) underneath underneath/beneath underneath/under understand

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