明显改善英文

improve; ameliorate; polish up; better;

improve英 [ɪmˈpru:v] 美 [ɪmˈpruv] vt.提高（土地、地产）的价值;利用（机会）;改善，改良vi.变得更好;改进，改善例句：The weather is beginning to improve 天气开始好转了。

amelioratevt. 改善；减轻（痛苦等）；改良vi. 变得更好例句：He refused to accept responsibility for these disasters or to ameliorate rural conditions

But recently, it has improved apparently.