This is the 7112th most frequent Chinese word.
确切
Precise; exact.
Here, the word '确切' is used as an adjective describing the noun '答案', meaning 'exact' or 'precise'.
我们需要确切的答案来解开这个问题。
We need an exact answer to solve this problem.
In this sentence, '确切地' is used as an adverb modifying the verb '描述', indicating the manner of description as 'precisely'.
请确切地描述发生了什么事。
Please describe exactly what happened.
In this context, '确切地' functions as an adverb tied to the verb '知道', expressing the certainty or exactness of knowing.