单词	semicentennial
释义	sem·i·cen·ten·ni·al (sĕm′ē-sĕn-tĕnē-əl, sĕm′ī-) adj. Marking the 50th anniversary of an event. n. A 50th anniversary or its celebration.
随便看	presto Preston presumable presumably presume presumedly presumer presuming presumingly presumption presumptive presumptively presumptuous presumptuously presumptuousness presuppose presupposition presuppositional presynaptic pret. pretax preteen preteenager pretence pretend

英语词典包含135693条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。