La historia no es solo lo que sucedió, sino también lo que pudo haber sucedido.
采购透明度不是一种趋势,而是消费者信任的基础。
You can fool all the people some of the time, some of the people all the time, but you cannot fool all the people all the time.
理论与观测之间的相互作用推动了天体物理学的发展。
The knowledge of the past stays with us to spur us on to new achievements.
The world is moving so fast these days that the man who says it can't be done is generally interrupted by someone doing it.