单词：periodically
考试类型：[IELTS]
periodically的用法和样例：
例句
- New strains of viruses appear periodically.新菌系的细菌周期性地产生。
- The state of knowledge in this field has been surveyed periodically in review papers.在一些评论文中对这一领域的动态周期性地进行了评述。
- Periodically, someone comes by with a truck to fill them.有些人定期地用卡车运输食品，装进机器。
- Drones must return periodically to recharge their weapons and propulsion systems.雄蜂一定定期地回复再休整他们的武器和推进系统。
词汇搭配
- periodic周期的
- periodically operated switch周期动作开关...
- periodically focused周期性聚焦的...
- quasi-periodically keyed emission准周期键控发射...
- periodically waterlogged周期性积水的...
经典引文
Periodically, we had to give concerts..in front of our parents.
出自：N. SedakaFreud read Latin and quotes in it periodically through his writings.
出自：N. Symington
- sometimes有时
- sporadically偶发地
- every so often时常
- occasionally偶尔地
- at times有时
- once in a while偶尔
- from time to time有时
- intermittently间歇地
- at regular intervals每隔一定时间...
- regularly有规律地
- like clockwork规律而准确地...
- cyclicallycyclic的副词形式...
- seasonally季节性地
- continually不断地
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