energy作为能源可数吗
energy是不可数名词，意思是能量、精力、活力。
例句
She was bouncy and full of energy.
It is important to conserve energy.
节能十分重要。
A new filter can save on energy bills.
一个新的过滤器能节省能源开支。
Renewable sources of energy must be used.
可再生的能源必须利用。
The whole of creation is made up of energy.
全宇宙是由能量构成的。
He was a man of stupendous stamina and energy.
他是个有着一流耐力、精力充沛的人。
He felt bright and cheerful and full of energy.
他感到兴高采烈，浑身充满活力。
She seemed invigorated, full of life and energy.
她看来生气勃勃，满怀生命力和精力。