The study of black holes has revolutionized our understanding of space and time.
对黑洞的研究彻底改变了我们对空间和时间的理解。
Certification is the grammar of responsible forestry.
"I'm interested in the human condition and what makes people tick."
克服恐惧的最好方式是用勇气面对它。
"La verdadera libertad está en la mente y en el corazón."