Heparan sulphate is not a protein. It is, rather, a sulphur-rich sugar-like molecule of a sort often involved in glycosylation.

硫酸乙酰肝素并不是一种蛋白质，在某种程度上它只是经常参于糖基化的一种富硫的、类糖的分子。

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If you look at a diagram of that molecule, it looks just like an estrogen molecule.

如果察看它的分子结构图，看起来就和雌激素的分子一样。

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When the skin samples were heated to 48 degrees, they produced this capsaicin-like molecule into a solution.

VOA: standard.2010.05.04

And then linked to the glycerol instead of a third fatty acid chain is a water soluble molecule, like a salt.

但连到甘油上的第三个基团不是脂肪酸链,而是一种水溶性的分子,像盐一样

耶鲁公开课 - 生物医学工程探索课程节选

You have a molecule where we put the carbon in the center, and we go up like this, like this, and out the back.

你有一个分子,我们把碳放在中间，现在我们得到了。

麻省理工公开课 - 固态化学导论课程节选

But it's way more than what it costs to copy a simple molecule like the one in Zocor or Zantac.

FORBES: Magazine Article

GM--its market share dropping like a heavy molecule, its bonds near junk, its vehicles piling up in dealer lots-is making its single biggest research bet on developing a hydrogen-powered car.

FORBES: Magazine Article

The same team took the first-ever single-molecule image in 2009 and more recently published images of a molecule shaped like the Olympic rings.

BBC: Atomic bond types discernible in single-molecule images