① 幸运地;幸亏(凭好运而成) 本义 副词 认知域 理据— 例句Fortunately, no one was hurt in the accident.幸运的是,事故中无人受伤。Fortunately, we had enough time to finish.幸运的是,我们有足够的时间完成。 溯源路径本义