“没有什么是永远存在的！”然而，在这个陈述中，我们想到的是人工制造的技术性物体和产品，它们在使用过程中受到自然磨损。

"Nothing lives for ever!" However, in this statement we think of artificially produced, technical objects, products which are subjected to natural wear and tear during use.

youdao

类似的人造白榴火山灰任何人工制造的，相似于白榴火山灰的物质。

Any of various artificially produced substances resembling pozzuolana ash.

youdao

事实上，食用人工制造的甜味食品可能会使减少体重的努力打上折扣。

In fact, eating artificially sweetened foods may actually sabotage weight-reduction efforts.

youdao

Here's an example where we'd like to make insulin, or having the insulin gene would be useful, but if we could take the insulin gene and make many copies of the insulin protein that would be a very useful thing.

例子就是我们人工制造胰岛素,胰岛素基因就很有用,但如果我们可以用胰岛素基因,复制很多胰岛素蛋白,这将会是非常有裨益的一件事

耶鲁公开课 - 生物医学工程探索课程节选