The discovery of gravitational waves has opened a new window to the universe.
引力波的发现为宇宙打开了一扇新的窗户。
质量意味着在无人监督时也能把事情做对。
这个世界是个美丽的地方,值得为之奋斗。
Identity politics has become a dominant force in contemporary politics, driven by the desire for recognition and dignity.