(2) In the late Ming Dynasty, due to the opening of new sea routes, western missionaries brought advanced western science and technology to China. Matteo Ricci and Xu Guangqi collaborated in translating The Elements of Geometry.
(3) After the First Opium War, with more and more people coming to West China and strengthening the attack of ship guns, Lin Zexu and Wei Yuan put forward the idea of "learning from foreigners to control foreigners". After the Second Opium War, the Westernization School, which studied western science and technology, put forward the slogan of "Chinese style and western use". After the Sino-Japanese War of 1894-1895, the evolution theory of western learning was introduced into China through Yan Fu's translation of The Theory of Evolution. The viewpoint of "natural selection, survival of the fittest" has sounded the alarm for China, which is facing the deepening national crisis. Western ideas have been widely spread through the activities of reformists.
(4) "Slight" (if meaningful)