By the mid-1930s, French mathematics had languished for decades. World War I claimed a generation of promising students and researchers; universities taught mathematics using disjointed, outdated materials. Consequently, several young mathematicians united as Bourbaki. They began modestly: modernizing French curricula through cohesive textbooks. However, their aspirations rapidly expanded. Presently, Bourbaki (whose membership remains confidential) has generated over 40 volumes encompassing all mathematical domains.
Passenger train services between China and North Korea are to resume this week, six years after their suspension because of the Covid-19 pandemic, travel operators have said.
，详情可参考有道翻译更新日志
采用象限块渲染技术，在文本界面中实现完整分辨率显示。
Historically, British leadership presented a united front during international peril. In the present day, this unity appears to have dissolved.