This is the 3720th most frequent Chinese word.
說明
"Explanation" or "to explain."
In this sentence, "說明" (shuō míng) means 'to explain,' and it is used with the object "計劃的所有細節" (all the plan's details), indicating the act of providing a detailed explanation.
他給我們詳細說明了計劃的所有細節。
He explained all the plan's details to us in detail.
Here, "說明" is used as a noun, meaning 'explanations,' referring to the content provided in the book regarding the issues.
這本書對這個問題的多個方面進行了充分的說明。
This book has sufficient explanations about various aspects of this issue.
In this example, "說明" is used as a verb meaning 'to explain,' and the object "如何操作這台設備" (how to operate this device) specifies the subject of the explanation.