You load them into the top of a gel and a gel is - in this case it's synthetic polymer gel but it looks very much like Jell-O.

你把它安置在一段凝胶上,凝胶是--,这种合成凝胶聚合物看上去很像吉露果冻

耶鲁公开课 - 生物医学工程探索课程节选

What they've done is they've put a load of restaurants into it as well and some permanent shops.

他们做的就是开很多餐馆，还有一些长期经营的商店。

有各种不同的魅力 - SpeakingMax英语口语达人