Sputnik 2 put a dog into space.

史泼尼克卫星2号带了一只狗到太空中。

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American unease was only heightened when Sputnik 1 was followed amonth later by the successful launching of Sputnik 2, which carried thedog Laika, the first living passenger, into space.

在"Sputnik 1"成功发射后仅仅一个月后 "Sputnik 2"号也发射成功 它还携带了第一个活的乘客 小狗"Laika"进行了太空飞行.这一切增加了美国人的不安.

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Whereas Sputnik 3 looked like a star of the fifth magnitude, Luna 2 was like a star of the seventeenth magnitude.

然而人造宇宙站3看起来像第五大小的一个星一样，月神2像第十七大小的一个星。

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The USSR began sending dogs into space in 1951, and a Russian mutt named Laika became the first (non-microbial) Earth-born animal to enter orbit on aboard Sputnik 2 on November 3, 1957.

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