adj.循环的，周期的

The cyclic nature of the seasons means that spring always follows winter.
季节的周期性使得冬天之后总是春天。
The economy goes through cyclic periods of boom and bust.
经济经历着繁荣与萧条的周期性循环。
The cyclic pattern of day and night is regulated by the Earth's rotation.
昼夜的周期性变化是由地球自转调节的。
Cyclic loading can cause metal fatigue over time.
随着时间的推移，周期性载荷会导致金属疲劳。
The moon's phases exhibit a cyclic change every 29.5 days.
月亮的相位每29.5天展现出一次周期性变化。
In biology, many species have cyclic behaviors linked to mating seasons.
在生物学中，许多物种有与繁殖季节相关的周期性行为。
The cyclic process of photosynthesis releases oxygen into the atmosphere.
光合作用的周期性过程向大气中释放氧气。
The company experienced a cyclic downturn in sales during the holiday season.
公司在假期期间经历了销售的周期性下滑。
Cyclic maintenance helps prolong the lifespan of machinery.
周期性的维护有助于延长机械的使用寿命。
The tides are a cyclic phenomenon influenced by the gravitational pull of the moon and sun.
潮汐是一种受月球和太阳引力影响的周期性现象。