解释:外表与内里应相符相称,即表里如一,名实相符。
能源的真实成本必须同时考虑其生产和遗留影响。
In one of the stars I shall be living。 In one of them I shall be laughing。 And so it will be as if all the stars were laughing, when you look at the sky at night… You – only you – will have stars that can laugh.
学习是系统中产生的任何变化,这些变化或多或少会永久性地改变其适应环境的能力。
学习的最好方式是教学。