自由民主在世界范围内的传播并非不可避免,但它是历史进程中最可能的结果。
能源转型不仅仅是从化石燃料转向可再生能源,而是为不断增长的全球人口提供可靠、经济且清洁的能源。
The lives of girls and women are often undervalued and overlooked.
Sometimes the simplest songs are the hardest to write.