粒子的概念只是一个近似，在经典极限下有效。
Collaboration across borders and industries is the key to solving the energy challenges of our time.
跨越国界和行业的合作是解决我们这个时代能源挑战的关键。
Are you upset, little friend? Have you been lying awake worrying? Well, don't worry. I'm here. I'm here to give you reassurance. Everything is all right. The famine will end...the sun will shine tomorrow...
I still haven’t found what I’m looking for.
We feel free when we escape – even if it be but from the frying pan to the fire.
