This is the 1000th most frequent Chinese word.
深度
"Depth" or "profoundness."
Here, '深度' is used to modify '分析' to indicate a thorough or detailed analysis.
这个问题需要我们进行深度分析。
This problem requires us to carry out an in-depth analysis.
In this context, '深度' is an adjective modifying '话题', emphasizing the complexity or profoundness of the topics.
这本书讨论了心理学的许多深度话题。
This book discusses many in-depth topics in psychology.
Here, '深度' refers to the physical measurement of how deep they can dive, illustrating its literal usage for depth.