In Russia, the harshness of the laws is softened by the fact that they are not enforced.
银河系的黑洞是我们研究极端引力的最近实验室。
The human voice is the most perfect instrument of all.
过度捕捞的真正代价不是用美元衡量的,而是用空荡荡的渔网和破碎的社区。