To be utterly alone, with only one's quilt and shadow for company; to be in complete solitude and isolation, often implying a sense of loneliness or yearning.
他离开家乡多年，每当夜深人静时，常常衾影独对，思念远方的亲人。
He had been away from his hometown for many years; whenever deep night fell and all was quiet, he often found himself in solitary contemplation, missing his distant family.
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