the physical and mental strength required for activity, work, etc.
能量, 活力
音乐会结束后，他没有了精力。
the natural world around us where people, animals, and plants live
环境
塑料废物对我们的环境是一个严重的问题。
a change in water, air, etc. that makes it harmful or dangerous
污染, 污染物
附近工厂的空气污染使城市的空气质量危险地降低。
a permanent change in global or regional climate patterns, including temperature, wind, and rainfall
气候变化, 全球变暖
气候变化正在导致农业实践的转变。
the energy that is obtained through different means, such as electrical or solar, to operate different equipment or machines
能源, 电力
工程师们正在开发从可再生能源中产生能量的新方法。
describing a contract, agreement, etc. that can be continued for a further period of time
可再生的
太阳能是一种可以无限使用的可再生资源。
(of a system or machine) achieving maximum productivity without wasting much time, effort, or money
高效的, 有效率的
to become larger in amount or size
增加, 增长
公司的利润在过去几个季度一直在稳步增长。
a rise in something's amount, degree, size, etc.
增加, 增长
生活成本有了显著的增加。
to become less in amount, size, or degree
减少, 降低
产品在初始发布后的需求减少了。
