以下为句子列表：
英文: 7 Cofferdam works, if proposed, during periods of high flow (wet season - May to August) shall be verified by the Independent Environmental Checker and submitted for the approval of the Director before the commencement of construction of the relevant work
中文: 如拟议在五至八月的雨季期间进行围堰工程，须经由独立环境查核人核证，并在展开建造有关工程项目之前提交署长批准。
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英文: A predictable long-term pattern of alternating periods of economic growth (recovery) and decline (recession), characterized by changing employment, industrial productivity, and interest rates. Also called economic cycle.
中文: 是指整个国家经济活动在扩张和收缩之间的不断循环。其周期分为繁荣、衰退、萧条和复苏四个阶段，以雇员，工业生产率和利率变动为特征，也叫经济周期。
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英文: According to Tessa Hill, a geologist at the University of California, Davis, more methane is released into the atmosphere from ocean deposits during periods of warming than previously thought.
中文: 根据加州大学的研究，在全球变暖期间，海洋中储存中的甲烷气体的释放量比以前想像的更多。
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英文: Accounting periods may be a fiscal year, a quarter, or a month, commencing on the first days thereof according to the Gregorian calendar.
中文: 会计期间分为年度、季度和月份。年度、季度和月份的起讫日期采用公历日期。
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英文: Also, the researchers were able to deploy the FOXY Sensor for long periods of time to collect data, and observed that oxygen concentration in the estuary declined by nearly 80 percent overnight -- a significant change that might indicate major tidal fluct
中文: 研究人员也能够使用FOXY传感器进行长期收集数据，80%整夜时间观察河口氧浓度的衰减--一个明显的变化可能表面主要的潮汐波动。
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