标签:海洋 相关文章
Harnessing Ocean Wave Power Provides Cheap Electricity 利用海洋波浪提供廉价电力和饮用水 WASHINGTON An often overlooked renewable energy resource is the power of ocean waves. Scientists in California say harnessing energy from the regu
发表于:2019-01-14 / 阅读(80) / 评论(0)
VOA标准英语2014年(三月)