periodic 

10678
CET4CET6TOEFL
单词释义
adj.周期性,周期的,定期的,间发性的
词根词缀记忆/谐音联想记忆 补充/纠错
词根per(完全)+i(连字 …………
其他怎么记补充/纠错
词根记忆a前缀:强调;pert、peri尝试,试验,还有圆周,环的意思如period,ture后 …………
词组和短语补充/纠错
periodic table of elements 元素周期表
periodic system of elements 元素周期系统
periodic migration 周期性迁移
periodic violent unleashing 周期性暴力释放
periodic table 元素周期表
periodic cleaning or replacement of filters 定期清洁或更换过滤器
Periodic Law of the Elements 元素周期律
Periodic Table of the Elements 元素周期表
the periodic table 周期表
have periodic health checkups 定期进行健康检查
have a periodic fit of doing sth. 定期做某事
单词例句
Eric suffers periodic mental breakdowns.
埃里克周期性地精神失常。
There is a periodic reshuffle of their company staff.
他们公司定期有人事变动。
The periodic table is an arrangement of all known elements in order of their atomic numbers.
定期表是按照原子序数排列的所有已知元素的排列。
Our company conducts periodic reviews of employee performance to ensure productivity and growth.
我们公司定期审查员工表现以确保生产力和成长。
The planet Mars has a periodic orbit around the sun, completing one revolution every 687 days.
火星围绕太阳有一个周期性的轨道,每687天完成一次公转。
The doctor recommended periodic health check-ups to monitor any changes in my condition.
医生建议我定期做健康检查,以便监测我的状况是否有任何变化。
The library undergoes periodic renovations to maintain its historical architecture and modern facilities.
图书馆定期进行翻修,以维护其历史建筑和现代化设施。
Many species exhibit periodic migration patterns, such as birds flying south for the winter.
许多物种展现出周期性的迁徙模式,比如鸟类冬季南飞。
The company offers periodic training sessions to update employees' skills and knowledge.
公司提供定期的培训课程以更新员工的技能和知识。
The tides are a periodic rise and fall of sea levels caused by the gravitational pull of the moon and the sun.
潮汐是由月球和太阳的引力作用引起的海平面周期性升降。
Farmers practice crop rotation as a periodic changing of crops to maintain soil fertility.
农民实行作物轮作,作为一种周期性更换作物的方法来保持土壤肥力。
The university holds periodic seminars where experts discuss the latest research findings.
这所大学举办定期研讨会,专家们在会上讨论最新的研究成果。
People here are accustomed to periodic eruptions.
这里的居民已经习惯了火山的周期性喷发。
Periodic progress has been made on production resumption, said Zhang.
张说,恢复生产已取得阶段性进展。
"The outbreak has caused a periodic drop in demand in the global display market and sped up the restructuring of the entire industry.
"Foreign investment is a market-driven activity, and periodic fluctuations are considered normal.
Some enterprises would keep production during the holiday, while some others are worrying about the periodic labor shortages after the Spring Festival, said the bureau.
The tight supply of electricity and coal in China is periodic and its impact on the economy can be controlled, said Fu Linghui, spokesperson of the National Bureau of Statistics.
Li encouraged the port to boost its strengths in terms of its geographical position, waterways and links with river transport and employ market methods to beef up imports, storage and transportation of commodities in order to improve its capability to respond to future periodic fluctuations in the global economy and stabilize industry and supply chains.
Singapore, which in 2018 played host to a historic meeting between US President Donald Trump and North Korean leader Kim Jong-un, said its planned virus safety measures for the event could include on-arrival tests, pre-event and periodic antigen testing, as well as contact tracing of attendees.
"The steel sector, according to the association, is currently undergoing cyclical adjustments, facing challenges like a sluggish recovery in demand from the traditional real estate sector, increasing periodic supply-demand imbalances and diminishing industry profits.
According to Wang Chengjie, the lead researcher from Tencent's YouTu Lab, an AI research department of the tech giant, three steps are critical to discover pulsars: observation with a radio telescope, recording the signal and finding out the dispersed and periodic signal that meets the conditions.
Although there are periodic production capacity shortages and price fluctuations, the industry has generally achieved a dynamic balance.
考试真题例句(机器翻译仅供参考)

四级Melanomas are more common if you have periodic intense exposure to the sun.

如果你周期性地强烈暴露在阳光下,黑色素瘤会更常见。

2015年6月大学英语四级考试真题(第1套)

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