总统职位需要最大的勤奋和关注。
The office of President is one which requires the utmost diligence and attention.
Topological insulators are a prime example of how theoretical predictions can lead to experimental discoveries that reshape our understanding of the physical world.
生命是一朵千瓣莲花,我拒绝了绽放的同时,我也拒绝了枯萎。