The true historian is a soldier of truth.
水产养殖的创新可以减轻对野生鱼类资源的压力。
The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge.
我们的收入好像我们的鞋子,如果太小就会挤脚并疼痛,如果太大则会绊脚和摔跤。