写作是理解世界的一种方式。
每把锁都有钥匙,每个问题都有解决方案。
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.
数学的本质在于它的自由。
在半导体行业,落后一步就可能落后十年。
采矿的未来在于智能化和绿色技术。