But it is not easy to get at. Specks of gold embedded in the mountain rock can only be extracted by blasting and crushing the rock to powder.

VOA: standard.2010.04.22

And this looks a little messy, but notice what's embedded in there is some familiar stuff.

这个看起来有点凌乱的，但是注意那里嵌入的是,一些类似的东西。

哈佛公开课 - 计算机科学课程节选

For now, just picture it in this simple way as a molecule, usually a protein, that's embedded in the cell membrane and many receptors have a part of them that is extracellular.

现在,我只把这种分子图示出来,受体通常是一种蛋白质,它们镶嵌在细胞膜上,很多受体还有部分结构露在细胞外

耶鲁公开课 - 生物医学工程探索课程节选