So it really does matter whether natural selection is true.

因此自然选择究竟是否正确，真的非常重要。

youdao

But some question whether natural gas is really as green as all that.

但有人怀疑天然气是否真得就那么清洁环保。

youdao

The question is whether natural selection really shaped that preference, as the study claims.

问题在于是否真的像这项研究所说的，是自然选择造成这一偏好。

youdao

But the decision to hold most of the exercise in Kitgum has raised questions as to whether Natural Fire 10 is part of preparations for a renewed military effort against the Ugandan rebel group, the Lord's Resistance Army.

VOA: standard.2009.10.20

So, a natural product is something that is made by nature, and often natural products, whether it comes from a plant or a marine organism have some really good, useful properties. And so, one particular compound has anti-tumor properties. So, again, along this line of cancer research.

天然产物是在自然界中生成的,通常一个天然产物，不管是来自植物或者海洋生物,都有些非常好非常实用的性质，其中的一个特殊的化合物,可以治疗癌症,再一次我们又来到癌症研究上。

麻省理工公开课 - 化学原理课程节选

In many countries there are a few natural bottlenecks, whether it be large data centers or right-of-ways."

VOA: special.2011.02.21

Many people are trying to figure out whether natural gas really has legs as a transportation fuel.

WSJ: Will Truckers Ditch Diesel for Natural Gas?

Then, whether natural or artificial, the full weight of synthetic biology can be brought to bear on the problem.

ECONOMIST: Synthetic biology

At Cornell, for example, researchers have reached opposite conclusions on whether natural gas from fracking would be better or worse for climate change than burning coal.

FORBES: Fracking: A Role for Universities