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periodically [英] [ˌpɪərɪˈɒdɪklɪ] [美] [pɪrɪˈɑdɪkli] [副] 周期性地;定期地 词频排名 23546/55435 学习人数 10108 难度等级 4/10 认知比例 60.95% 例句 Economic crises recur periodically. 经济危机周期性地发生。 Periodically review their emerging strengths and weaknesses with them 定期和孩子一起反思他们表现出来的优缺点(考研) Police were periodically patrolling the area. 警察定时在这一地区巡逻。 助记 词源 period周期,periodically周期性的
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