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What you actually pay for something is at least twice the listed price because of the energy, time, money needed to set it up, learn, maintain, repair, and dispose of at the end. Not all prices appear on labels. Actual costs are 2x listed prices.
保持健康,不要失去勇气。
【译文】君子可以去救人,却不可陷进去;可以受欺骗,却不可以盲目行动。
英国人不太注重精神生活,所以他们发明了板球来让他们对永恒有点概念。
The line between good and evil is often blurred.
农业现代化不是简单的机械化,而是整个产业链的智能化升级。
I have already carried out my duty. I have proved the Poincaré conjecture and I have nothing more to do in mathematics.