energy
/ˈenədʒɪ; `ɛnɚdʒɪ/ n
1 [U] ability to act or work with strength and eagerness 精力; 干劲
She's full of energy. 她精力充沛.
His work seemed to lack energy. 他工作似乎缺乏干劲.
It's a waste of time and energy. 那简直是浪费时间和精力.
2 energies [pl]
person's powers available for working or other activities 精力; 活力
I must concentrate my energies on decorating today. 我今天必须集中精力搞装饰.
apply/devote all one's energies to a task 全力以赴.
3 [U] (physics 物) ability of matter or radiation to do work because of its motion or its mass or its electric charge, etc 能; 能量: nuclear energy 核能
electrical energy 电能 * kinetic energy 动能.
4 [U] fuel and other resources used for operating machinery, etc 能源
It is important to conserve energy. 节省能源十分重要.
[attrib 作定语]
an energy crisis, eg when sources of energy are scarce or unavailable 能源危机.