包括白色背景在内的六种颜色代表了世界上所有国旗的颜色......这是一个真正的国际标志。
不要说不会消魂,西风卷起帘子,人比黄花还要消瘦。
The Langlands correspondence is not just a theorem but a guiding principle for future discoveries.
Adaptability is the cornerstone of resilience in an ever-changing market.