Improvei提高improvevt.改善；改进；提高vi.变得更好；改进improved variety改良品种,育成品种,育成种improved product产品改良improved surgery改良手术improve upon sth作出比 ... 更好的东西； 对 ... 作出改进； 改进； 超过improve relation改善关系improved by lime石灰改良improved process工艺改进improved plastic改性塑料Improved Methods改进措施improved pasture改良牧地