energetic的名詞形式為energy。energetic作為形容詞，含義為“精力充沛的”、“需要能量的”、“積極的”；energy作為名詞形式，含義為“能量”、“精力”、“干勁”、“力量”。
一、energetic的基本含義及用法介紹
energetic作為形容詞，意為精力充沛的;充滿活力的;需要能量的;積極的。
例句：The heart responds well to energetic exercise.
心臟對劇烈運動反應良好。
Ten year-olds are incredibly energetic.
10歲的孩子精力格外旺盛。
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。
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。
I think I'd prefer something a little less energetic.
我想我更喜歡不太劇烈的活動。
For the more energetic, we offer windsurfing and ping.
對喜歡劇烈運動者，我們有沖浪和潛水運動。
British history of the 19th century is peopled by energetic reformers
19世紀英國史上積極改革者層出不窮。
The elderly woman is still quite energetic.
這位上了年紀的老婦人仍然精力充沛。
二、energy的基本意思及用法介紹
energy作為名詞，是可數(shù)名詞，意為能量;能源;精力;活力;干勁;力量。
例句：It's a waste of time and energy.
那是浪費時間和精力。
She put all her energies into her work.
她把全部精力都投入到工作中去了。
It is important to conserve energy.
節(jié)能十分重要。
He was saving his energy for next week's race in Belgium...
他正為下周在比利時的比賽養(yǎng)精蓄銳。
At 54 years old her energy and looks are magnificent...
她54歲了，精力和氣色都非常好。
She had started to devote her energies to teaching rather than performing...
她已經(jīng)開始將精力從表演轉(zhuǎn)移到教學中。
