温哥华冬奥此次之所以能够大幅降低碳成本，部份要归功于水力发电取得容易。

The significantly lower carbon cost of the Vancouver Olympics is in part due to their easy access to hydroelectric power.

youdao

对于第一步画出骨架，其实比刚才更容易,因为我们没有一个中心原子，我们这里只有碳和氮两个原子。

So in terms of the first step of skeletal structure, this is actually going to be easier because we don't have a central atom, we just have carbon and nitrogen here.

youdao

但是计算产品的碳质残留物还远不能容易地做到。

But calculating the carbon footprint of a product is far from easy.

youdao