1
in depth
We need to study the problem in depth.
我们需要深入研究这个问题。
深度；纵深
depths — plural of depth
先理解核心含义，再看它在真实句子里的用法。
深度；纵深
the distance from the top or front of something to its bottom or back; how deep something is
We need to study the problem in depth.
我们需要深入研究这个问题。
表面以下的垂直距离；深度
the vertical distance below a surface; the degree to which something is deep
向下、向后或向内的程度
the extent downward or backward or inward
从前到后的距离,如抽屉或壁橱的深度
the distance between the front and the back, as the depth of a drawer or closet
心理或智力上的深刻程度
degree of psychological or intellectual profundity
Before diving, check the depth of the water.
跳水前，先检查一下水的深度。
AI contextual example
The pool has a depth of two meters at the deep end.
游泳池深水区的深度为两米。
AI contextual example
We need to know the depth of the hole before planting the tree.
种树前，我们需要知道洞的深度。
AI contextual example
the depth of the water
水的深度。
WordNet
We need to study the problem in depth.
我们需要深入研究这个问题。
The depth of the lake is 50 meters.
这个湖的深度是50米。
The submarine can dive to a depth of 300 meters.
这艘潜艇可以下潜到300米的深度。
Not this
The deep of the ocean is over 10,000 meters.
Use this
The depth of the ocean is over 10,000 meters.
汉语学习者常混淆形容词 deep 和名词 depth。表示‘深度’时，应用名词 depth，而非形容词 deep。
Not this
They measured the depths of the river at this point.
Use this
They measured the depth of the river at this point.
depth 作为具体可测量的深度时通常不可数，不应使用复数形式 depths。depths 多用于抽象意义（如‘深处’）或固定短语。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
深入地
We need to study the topic in depth.
我们需要深入研究这个话题。
景深
The photographer adjusted the depth of field.
摄影师调整了景深。
深度知觉
Good depth perception is important for driving.
良好的深度知觉对驾驶很重要。
知识深度
His depth of knowledge on the subject is impressive.
他对该主题的知识深度令人印象深刻。
很深
The ocean has great depth in this area.
这个区域的海水很深。
性格深度
Her novel explores the depth of character.
她的小说探讨了性格的深度。
深入地，详细地
The professor discussed the topic in depth.
教授深入地讨论了这个话题。
超出某人的能力或理解范围
When the conversation turned to quantum physics, I felt completely out of my depth.
当话题转向量子物理时，我感到完全超出了我的理解范围。
达到最低点；陷入最坏境地
After losing his job and his home, he plumbed the depths of despair.
失去工作和家后，他陷入了绝望的深渊。
耶和华啊，我从深处向你求告。
Out of the depths I cry to you, O Lord.
耶和华啊，我从深处向你求告。
Use depths naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
depth 是 deep 的名词形式，想象 deep（深）加上 th（像深度的刻度），记住“深度”就是 depth。
语域：neutral 常见场景：地理、测量、抽象讨论 深度一词在物理和技术语境中很常见，抽象用法也多用于文学或讨论中，整体属于中性词汇。
作“深处”解时多用复数 depths；in depth 为固定短语，意为“深入地”。
Dictionary facts from DICTIONARY_API_DEV, ECDICT, WIKTIONARY.