英语词汇polarity reversal简单造句、意思、用法及例句-英语例句辞典

单词	polarity reversal
例句	原声例句科学60秒-科学美国人 2020年7月合集 The last polarity reversal took place some 770,000 years ago. 最近一次地磁极性倒转发生在大约77万年前。
随便看	initial shareholder initial signal initial signature initial slope initial snapshot initial solution initial stage initial state initial statement initial status initial step initial stock initial success initial support initial survey initial symptom initial task initial tension initial term initial test initial time initial to initial track initial training initial transition

英语例句辞典收录519880条英汉例句词条，基本涵盖了全部常用单词的造句方法及例句，是英语学习的有利工具。