經(jīng)濟發(fā)展理論研究的是經(jīng)濟系統(tǒng)如何產(chǎn)生不斷改變它的力量。
The theory of economic development is the study of how the economic system generates the forces which incessantly transform it.
Sometimes the hardest thing and the right thing are the same.
人工智能不是零和游戲，它可以為每個人創(chuàng)造新的機會。
我從不帶著會輸?shù)哪铑^走上球場。