explanation在表示解釋、說明時,既是可數也是不可數名詞。作可數名詞的情況較多，如舉例的some explanations；作不可數名詞的情況一般存在于一些固定用法中，如without explanation。

exploration用法

exploration的解釋

n. 探險,踏勘,探測

exploration的例句

They decided to make a full exploration of the accident.

他們決定對事故做一次全盤研究。

It is true during their explorations they often faced difficulties and dangers of the most perilous nature.

確實在探險中，他們經常面臨著各種最有危險性的艱難和險阻。

explanation的用法例句

1.Their water was turned off weeks ago without explanation.

他們的水在幾周以前就毫無理由地被切斷了。

2.Herr Kohler wanted an explanation for what he described as "slanderous" remarks.

赫爾·科勒希望有人能夠為那些他稱之為“造謠中傷”的言辭作出解釋。

3.It is possible that there's an explanation for all this.

也許，對于所有這一切，會有一種解釋。

4.She had not waited for any explanation but had condemned him unheard.

她沒等他解釋，就指責他充耳不聞。

5.How do you know that this explanation is wrong?

你怎么知道這個解釋是錯誤的呢?

6.That may be two-bit psychology, but it's the only explanation I have.

那可能是不值一提的心理，但它卻是我唯一的解釋。