用作定语
▲~+n.
I never saw such an energetic man.我从没见过精力这么充沛的人。
He is an energetic supporter of the peace movement.他是一名和平运动的热心支持者。
He took energetic steps to fulfil his plan.他采取了有力的措施来完成他的计划。
用作表语
▲S+be+~
He is constitutionally energetic.他体质强健,精力充沛。
The more he worked, the more energetic he became.他越干越起劲。
▲S+be+~+to-v
I don't feel energetic enough to rush about, so I'll sit down.我感到没有力气东奔西跑,我想坐下来。