太空之旅；太空旅行
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太空之旅；太空旅行；太空之旅；太空旅行
a journey into outer space
She dreamed of taking a space trip to the Moon.
她梦想进行一趟登月太空之旅。
太空之旅；太空旅行
a journey into outer space
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Dictionary facts from AI_SUPPLEMENT.