翻天覆地: turn the world upside down; a tremendous change; earthshaking; epoch-making; overturn the sky and the earth; shake the very ground [world]; turn the whole world upside down; turn the world
像这样翻天覆地的变化一定会产生深远的影响: such an earthshaking change must have far reaching effects
大事: 1.(重大的事) great event; major event; important matter; major issue 短语和例子关心国家大事concern oneself with affairs of state; 头等大事 a matter of prime or paramount importance; 这本新辞典是今年文化界的大事。 the new d
