工程设计是在存在大量不确定性和某些未知因素的情况下进行的。

The engineering design is usually undertaken with a great deal of uncertainties and unknown factors.

youdao

在存在大量食草动物的同时却只有少量的水藻花粉囊，这暗示出但没能证明食草动物已吞噬了大部分水藻。

A low number of algal cells in the presence of a high number of grazers suggested, but did not prove, that the grazers had removed most of the algae.

youdao

研究数据表明，在美国，由妇女当家的单亲家庭中存在着大量的贫困现象。

Research data indicate that there is a great deal of poverty in the United States among single-parent families headed by women.

youdao

You could imagine a protein that's existing inside a cell at some level of abundance.

想像一下,在细胞中有一种大量存在的蛋白

耶鲁公开课 - 生物医学工程探索课程节选

The adult learner gets tremendous value if the educational institution is able to provide the environment where a lot of working takes place, where friendships are made, where connections are made and can be used outside later beyond the confines of the educational environment.

成年学者会有很多收获,只要教育体系能够,提供一个环境，在这里,存在大量的工作，但能够建立友谊，还能创建人际关系,并且之后在学习环境外,也能利用到这种关系。

麻省理工公开课 - 媒体、教育、市场课程节选