The pursuit of science is not a luxury but a necessity for the survival of mankind.
Sustainability is no longer an option; it's a necessity for the future of leather tanning.
在每个词中,都有一个等待被发现的世界。
解释:做朝廷的臣,应该尽忠职守勇于谏言,做百姓的君王,应该广开言路不堵塞民声,才是国家的福泽。