by the deep

基本解释

The steepness of the terrain is emphasized by the deep shadows that darken north- and northwest-facing slopes.
深色阴影使北向和西北向的斜坡变暗，也使坡度看起来更大。
In both cases, the authors found that women had a strong preference for the low pitch male voice and remembered objects more accurately when they have been introduced by the deep male voice.
在这两种情况下，作者发现女性更偏爱低音男性的声音，并且当听到低沉的男性声音介绍的时候她们能更准确地记住物体。
The trouble is that the popularity is driven not only by the vast selection and the high level of customer service, but also -- and mainly -- by the deep discounts the company regularly offers.
问题在于，公司受欢迎的程度不仅仅取决于广泛的选择和高水平的客户服务，还取决于公司定期进行的折扣活动，这一点是非常重要的。

It has high mountains. It has valleys formed by ancient ice that cut deep into the Earth millions of years ago.
I was neither at the hot gates Nor fought in the warm rain Nor knee deep in the salt marsh, heaving a cutlass, Bitten by flies, fought.
我未曾到过火热的城门,也未曾在暖雨中作战,更未曾在没膝的盐沼里挥舞弯刀，挨着飞蝇的叮咬，苦战。
耶鲁公开课 - 1945年后的美国小说课程节选
And scholarship of the nineteenth century and most of the twentieth century is generally characterized by a deep-seated bias that views impurity rules as primitive and irrational taboos, and sacrifice as controlled savagery that's empty of any spiritual meaning.
十九世纪和二十世纪的大部分时期,学术界都有一个,很深层的偏见，那就是认为不纯的规则是,原始且无理的，献祭是野蛮人才干得出来的,无任何精神意义的活动。
耶鲁公开课 - 旧约导论课程节选

Two of the factors, lack of health insurance and childhood poverty, have been exacerbated by the deep recession.
FORBES: America's Healthiest And Unhealthiest States