从理论上来讲，如果你乘着超快速宇宙飞船去太空旅行，你将会感觉到时间过得很慢，可能仅仅过了几年的时间。
Some scientists say time travel is theoretically possible, at least if you want to jump ahead to the future, but don't start saving up for a time machine just yet.
从理论上来讲，如果你乘着超快速宇宙飞船去太空旅行，你将会感觉到时间过得很慢，可能仅仅过了几年的时间。
Some scientists say time travel is theoretically possible, at least if you want to jump ahead to the future, but don't start saving up for a time machine just yet.
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