能源的真实成本必须同时考虑其生产和遗留影响。
世界就是所有实际情况。
不管怎样,还是要帮助。
The work of art is a whisper of the cosmos.
The development of formal systems has revolutionized our understanding of mathematics.
"Every story is a lie until someone believes it."
法律效力的概念对于理解法律的本质至关重要。