③
(健康、局势等)好转;进步(状态向好的变化)
相关 名词理据由「改进之行为」落到「状况之好转」——不涉人为刻意,专指状态自然向好的变化(improvement in his health)。
例句
There has been a marked improvement in his health.他的健康状况明显好转;由改进之行为转到状态自然向好(相关·结果)——好转。The economy showed slight improvement this quarter.本季度经济略有起色;同此——局势好转。
溯源路径本义 → 义项3