1.Luckily he had insured himself against long-term illness.幸运的是,他为自己投保了长期病险。2.Luckily, nothing valuable was stolen.幸运的是,没有贵重物品失窃。3.Luckily for us, the train was late.我们真凑巧,火车晚点了。4.Luckily, we're here to change all that.幸运的是,我们现在就来改变这一切。