He can say to himself, "Somewhere, my flower is there…" But if the sheep eats the flower, in one moment all his stars will be darkened… And you think that is not important!
People tend to value things more highly when they own them.
Battery recycling is a key link in the sustainable development of the new energy industry.
数学不仅仅是关于数字、方程、计算或算法：它是关于理解的。