电视主持人不自然的笑容；只是一个短暂，夸张和感官的人工合成世界。

A TV host's plastic smile; a plastic world of fad, hype, and sensation.

youdao

Perkin 很快意识到他的紫色溶液可以用来给布料上色，从而使其成为世界上第一种合成染料。

Perkin quickly grasped that his purple solution could be used to colour fabric, thus making it the world's first synthetic dye.

youdao

煤焦油是伦敦煤气道路照明几乎无限的副产物，利用便宜量大的煤焦油，染厂于1857年开始生产世界上第一种合成染色材料。

Utilising the cheap and plentiful coal tar that was an almost unlimited byproduct of London's gas street lighting, the dye works began producing the world's first synthetically dyed material in 1857.

youdao

These are all things that the Bawendi group is working on. What they are real experts in is synthesizing many different kinds of these dots, and they have a synthetic scheme that's used by research groups around the world.

这些是Bawendi组正,在做的工作，他们擅长的是,合成各种量子点，他们的,方法已经被世界各地的,实验组采用，他们组还和。

麻省理工公开课 - 化学原理课程节选