Manmade fibers such as polyester are a better choice.

人造纤维，例如伸缩尼龙就是个更好的选择。

This process can be seen in both natural and manmade objects.

这个过程在自然和人工制品上都能看见。

Our problems are manmade; therefore, they can be solved by man.

我们的问题都是人为的，因此是人所能解决的。

There are no natural lakes in the state of Ohio, every one is manmade.

在俄亥俄州内没有天然湖泊，每一个都是人造湖。

Manmade global warming is likely also playing a role in the record warmth.

人为原因导致的全球变暖对创记录的暖和，很可能也起了作用。