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1·Do you know what the earth satellite is?

你知道什么是地球卫星吗？

2·When was china's first man-made earth satellite launched?

中国的第一颗人造地球卫星是什么时候发射的？

3·China succeeded in sending up another man-made earth satellite.

中国又成功地发射了一颗人造地球卫星。

4·Another earth satellite is reported to have been put into orbit.

据报道又有一颗地球卫星被发射到预定轨道。

5·Structurally they were similar to the first Earth satellite PS-1.

它们与首颗地球卫星PS-1有着类似的结构。

6·A manned earth satellite was considered a necessary research step.

载人地球卫星被看作是一个必要的研究阶段。

7·China succeeded in launching its first man-made earth satellite in1970.

1970年中国成功地发射了第一颗人造地球卫星。

8·China succeeded in launching its first manmade earth satellite in 1970.

一九七〇年中国成功地发射了第一颗人造地球卫星。

9·The first artificial earth satellite in the world has now been created.

世界上第一颗人造卫星已经诞生了。

10·China succeeded in launching its first man-made earth satellite in 1970.

中国于1970年成功发射了第一颗人造地球卫星。