天宫一号，中国首个太空实验室，在今年4月2日完成任务后返回地球。
Tiangong Ⅰ, China's first space lab, returned to the earth after finishing its job on April 2 this year.
在今天的午饭时，服务员告诉我们菜单上所有的食物都是产自这里，天字一号岛的。你会不会从地球进口任何食料呢？
At lunch today, the waiter told us that all the food on the menu was produced here on Island One. Do you import any food from Earth?
一旦火箭的第一级熄火，并且与顶部的战神一号X型分离，所有这些部件都将返回到地球。
Once the first stage has been extinguished and has separated from the top of the 1-x, all the elements will come back to Earth.
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