The planet is very big.

这个行星很大。

Saturday is named after the planet Saturn.

星期六是以土星命名的。

We're to observe the Planet Venus whilst we're there.

我们将在那里观测金星。

African elephants are probably the interesting animals on the planet.

非洲象可能是地球上有趣的动物。

When the planet tilts, the position of the pole moves, too.

当地球倾斜时，极点的位置也会移动。

In the blink of an eye, Atlas was brought back to the planet.

眨眼间，阿特拉斯被带回了地球。

Scientists have sent spaceships to the planet Mars to take photos.

科学家们已经派飞船到火星拍照。

We learnt that sequoia trees are the largest living things on the planet.

我们了解到红杉树是地球上最大的生物。

Founded in 1888 to increase and diffuse geographic knowledge, the Society's mission is to inspire people to care about the planet.

学会成立于1888年，其使命是激励人们关心地球。

The orbit of the planet is elliptic.

这颗行星的轨道是椭圆的。