Several countries,mostly in Europe, offer different levels of marriage rights to same-sex couples.

VOA: special.2010.02.06

This is introducing a gene, it's a natural gene but it's not - it's a natural gene that's found in humans and is actually expressed all over your body in different levels, but you're concentrating it or over expressing it in one particular region of tissue in order to have a particular effect.

通过导入一个基因,这是一个天然基因但--,是一种于人体内发现的天然基因,在全身细胞中都有不同程度表达,但需要集中在组织的某一特定区域,表达或过表达,才能达到特定疗效

耶鲁公开课 - 生物医学工程探索课程节选

So we're going to think about - in the next few weeks we're going to think about the human organism at different levels of magnification and I've shown those levels here.

所以我们讲到,在接下来的几周里,我们将在不同的水平下,研究人类机体,我已经讲过这些水平了

耶鲁公开课 - 生物医学工程探索课程节选

Engineers have found that wetlands, grassy fields and soil or sand filters can take in stormwater with different levels of pollution and release water with a relatively constant cleanliness.

VOA: standard.2010.08.04

if that's something you're familiar with - in which the interaction of real people with what are called "Toons" in that film is part of the film's pleasure. The boundary between different levels of reality is crossed.

如果你们对这个比较熟悉的话,在电影里一个被称为“Toons“的卡通形象和真人互动“,这是那部电影的好玩之处,在那里不同层面现实的边界交叉了。

耶鲁公开课 - 弥尔顿课程节选