a deep one

基本解释

The answer, in a word, is recession, and probably a deep one.
简而言之，答案就是：衰退，而且很可能是一场程度深重的衰退。
It was a small lake, but a deep one, and the trees came down to its edge.
这是一个小湖，而是一个深刻的人，树下来的优势。
Some animals only half-hibernate, that is to say, their sleep is not such a deep one.
有些动物只是半冬眠，就是说，它们的就寝并不是深度就寝。

One of the private art collections Isabella visited in Milan had a deep influence on her.
I think more maturity can be one of the effects, one of the products of undergoing an endless, a ceaseless activity of Paiddeia, of deep education, because moral maturity comes from courage.
我认为道德成熟是不间断的，深层次的教育活动,的体现和产物，因为道德成熟来源于勇气。
普林斯顿公开课 - 人性课程节选
It involves putting a needle, a fairly large needle into usually one of the pelvic bones and collecting marrow from which is tissue that's deep inside those bones.
先要用针头,相当大的针头刺进你的盆骨,然后进行收集,这些在骨头深处的骨髓
耶鲁公开课 - 生物医学工程探索课程节选

But the philosophical fountain from which we drink needs to be a deep one.
FORBES: Human with Machine Trumps Human vs Machine