For a crew to make the 50, 000-light-year journey to the centre of the Milky Way within 10 years, they would have to travel at 99.999998 per cent the speed of light.
要在10年内飞行50000光年到达银河系中心，飞船速度必须达到光速的99.999998%。
This website chief says, in sheet of "travel end the frame of" falls, take the part that assumes cent of circuitry of travel agent journey to sell business immediately.
该网站负责人介绍说，在“旅游尾单”的框架下，立马走承担旅行社旅行线路分销商的角色。
This website chief says, in sheet of "travel end the frame of" falls, take the part that assumes cent of circuitry of travel agent journey to sell business immediately.
该网站负责人介绍说，在“旅游尾单”的框架下，立马走承担旅行社旅行线路分销商的角色。
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