名詞 explanation:

1. a statement that makes something comprehensible by describing the relevant structure or operation or circumstances etc.
   同義詞：account
2. thought that makes something comprehensible
3. the act of explaining; making something plain or intelligible

1. There could be some psychological explanation for his bad health.
   他的健康不佳可能有心理上的原因。
2. I grant that your explanation is reasonable.
   我承認你的解釋是合理的。
3. What did he say in explanation of his stupid behavior?
   他說了什么來解釋他那愚蠢的行為？
4. Did he provide a satisfactory explanation?
   他是否給出了令人滿意的解釋？

ex.pla.na.tion

n.（名詞）
The act or process of explaining:
解釋：解釋的行為或過程：
例句：
launched into a detailed explanation.
進行一次詳細的解釋

Something that explains:
辯解：
例句：
That was supposedly the explanation for their misdeeds.
那可能是為他們的罪行進行的辯解

A mutual clarification of misunderstandings; a reconciliation.
和解：為消除誤解而進行的相互說明；和解