energetic
/ˌenəˈdʒetɪk/adjective
1- showing or involv-ing great activity or vitality精力充沛的, 充满活力的; 需要剧烈活动的：
moderately energetic exercise.
适度的体能锻炼。
1.1
- Physics characterized by a high level of energy (in the technical sense)【物理】高能的：
energetic X-rays.
高能X射线。
1.2
- of or relating to energy (in the technical sense)（与）能量（有关）的：
派生词
energetically
adverb词源
mid 17th cent. （in the sense 'powerfully effective'）： from Greek energētikos, from energein 'operate, work in or upon' （based on ergon 'work'）.