energy的形容词形式怎么写?

　　She's always full of energy.

　　她总是充满活力。

　　Nuclear energy may overtake oil as the main fuel.

　　核能可能会超过石油成为主要燃料。

　　Achieving success at this level requires a commitment of time and energy.

　　取得这种水平的成就需要花费时间和精力。