妇女与食物循环技术;
这些微小的东西构成了食物链的基础,并在全球碳循环中发挥着重要作用。
These tiny things form the base of the food chain and play an important role in the global carbon cycle.
身体因消化循环而耗费的能量与食物本身所含的相比,是微乎其微的。
The calories your body burns in fueling the digestive cycle are minuscule compared with the calories in the food itself.
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