an example or instance of improving or being improved 进步(或改善、增进)的例证 an improvement in East–West relations. 东西部关系改善的例证。 ■[mass noun]the action of improving or being improved 进步,改善,增进 there's still room for improvement. 还有改进的余地。 ■a thing that makes something better or is better than something else 改善物;进步物 home improvements. 家居改善品。 it's an improvement on the last cake I made. 这比我上次做的蛋糕好多了。
语源
late Middle English emprowement (in the sense 'profitable management or use; profit'), from Anglo-Norman French, from emprower (see improve)