energy的形容詞和名詞是？

In the exam there's sure to be a question on energy.

考試時準有關於能量的題目。

It's a waste of time and energy.

那是浪費時間和精力。

He has carried out extensive research into renewable energy sources.

他已經對再生能源進行了廣泛研究。

Her mother was a resourceful and energetic woman.

她母親是一個足智多謀、精力充沛的女人。

The company is trying to create a young energetic image.

這家公司正試圖塑造一個充滿活力的年輕形象。

He knew I was energetic and dynamic and would get things done.

他知道我精力充沛、生氣勃勃，會把事情辦成的。