"We are all in the gutter, but some of us are looking at the stars."
The future of energy lies in the integration of traditional and renewable sources.
Technological innovation without user thinking is just self-indulgence.
蒸汽机中运动的产生总是伴随着一个我们应关注的情况,即热量的平衡重建。
解释:大部分药材都以新鲜为好,但艾草却以陈年的为佳,体现了药材使用的特殊性。