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1·Saturn is the second biggest planet in the solar system.

土星是太阳系的第二大的行星。《柯林斯英汉双解大词典》

2·The picture shows six of the nine planets in the solar system.

这张图片展示太阳系9个行星中的6个行星。《柯林斯英汉双解大词典》

3·The spacecraft will enable scientists to study some dark corners of the solar system.

太空船使得科学家可以研究太阳系中一些不为人知的角落。《柯林斯英汉双解大词典》

4·Mars is the lightest planet in the solar system, which makes Mars the second smallest planet in the solar system.

火星是太阳系中最轻的行星，这使得火星成为太阳系中第二小的行星。

5·Some spaceships have gone beyond the solar system.

一些宇宙飞船已经飞出了太阳系。

6·Scientists have launched many spaceships to explore other planets in the solar system.

科学家们已经发射了很多宇宙飞船去探索太阳系的其他行星。

7·Mars's orbit around the Sun is the fourth fastest orbit of all the solar system planets.

在太阳系所有行星中，火星绕太阳的轨道速度第四快。

8·Mars is one of the four planets in the solar system that is a rocky planet.

火星是太阳系中四颗岩态行星之一。

9·If the solar system has an underachiever, it has to be Venus.

如果太阳系有一个后进生，那一定是金星。

10·They're basically made up of debris left over from the origin of the solar system.

它们基本上是由太阳系起源时遗留下来的碎片组成的。

太阳系

1·Saturn is the second biggest planet in the solar system.

土星是太阳系的第二大的行星。《柯林斯英汉双解大词典》

2·The picture shows six of the nine planets in the solar system.

这张图片展示太阳系9个行星中的6个行星。《柯林斯英汉双解大词典》

3·The spacecraft will enable scientists to study some dark corners of the solar system.

太空船使得科学家可以研究太阳系中一些不为人知的角落。《柯林斯英汉双解大词典》

4·They're basically made up of debris left over from the origin of the solar system.

它们基本上是由太阳系起源时遗留下来的碎片组成的。

5·The Moon's spin and tilt are unique among other planetary bodies in the solar system.

月球的自转和倾斜在太阳系的其他行星体中是独一无二的。