自然周期

自然循环

natural cycle───自然循环；自然环境

natural causes───自然因素

natural child───亲生子女；非婚生子女；私生子女

natural dye───天然染料

natural gases───天然气（naturalgas的复数）

natural gasses───天然气

natural slopes───天然坡

Agrochemicals had destroyed the natural cycles of nutrient renewal that intact ecosystems use to maintain themselves.───农用化工产品破坏了原始生态系统赖以生存的营养更新的自然循环。

Unexplained trend maybe due to warming, natural cycles, expert says.───专家认为，这个暂无法解释的趋势可能与气候变暖和自然环流有关。

Let the majesty of nature help you understand the natural cycles of life and how we fit into this plan.───让奇妙大自然帮助你进一步了解生命的自然规律，以及如何适应生命之变幻。

Divers, who stay under water just for fun or to hunt for souvenirs, are disturbing the natural cycles of marine life.───潜水员，他们留在水下只为好玩或追缉的工艺品，令人感到不安的自然周期的海洋生物。

"Natural variability, from the sun, volcanic eruptions or natural cycles, cannot explain recent warming. "───“来自太阳、火山爆发或自然周期的自然变化，都无法解释近年来的气候变暖现象。”

These landscapes should maintain themselves and survive by being part of the natural cycles of the local environment.───这些景观应该可以使它们自己保存并存活下来，并成为本地环境自然生态圈的一部分。

There are natural cycles at work. Climate change may have accelerated that process.───自然周期在发生作用。气候变化可能会加速这一过程。

Ashtanga Yoga over time makes us more attuned to natural cycles.

It was serious, but nothing that was necessarily unexplainable by the natural cycles of health and disease in such forests.