vigorous: implies an undepleted and undiminished capacity for activity, freshness or roubustness: still ~ and sharp in his seventieth year.


energetic: sug.a capacity for intense, sometimes bustling or forced, activity: an ~ wife, mother, and career woman.

strenuous: sug. what is arduous and challenging, and evokes a consistently vigorous response: moved to Alaska in search of the ~ life.


lusty: exuberant energy and capacity for enjoyment: a huge meal satisfied their ~ appetite.


nervous: sug. forcible and sustained effectiveness resulting from mental vigor: a ~ energy informed his sculptures.


vigorous有活力: 强调不衰竭(的新鲜活力强健),程度最强, energetic能量充沛: 即活动时有力量, strenuous: 面对困难艰苦时的活力, lusty: 去享乐的能量, nervous: 思维活力，能长时间思考有力。


记忆方法： 1）LNVSE想成Lai NYSE(New York Stock Exchange纽约证券交易所)来纽约股市==>充满活力来炒股。

           2）活力的意思是有活力有力量mean having great vitality and force.