地球

The globe is rolling round all the time.

一直在转动。

The earth revolves both round the sun and on its own axis.

既公转又自转。

The earth makes a yearly revolution around the sun.

每年绕太阳一周。

The moon is a satellite of the earth.

月的一颗卫星。

Man is a dweller on the earth.

人类的寄居者。

The earth orbits the sun once every 365.25 days.

每365.25天绕太阳轨道一圈。

The lunar stone is different from earth's.

月的石头和的不同。

The earth crosses the tracks of certain comets.

过某些彗星的轨线。

How do you demonstrate that the earth is round?

你怎样证明的?

The Earth is not a perfect sphere.

并不一个完全的体。

The earth's shadow on the moon was quite distinct.

月上的阴影很清晰。

The rotation of the earth round the sun takes one year.

绕着太阳旋转要一年时间。

Mars takes longer to revolve on its axis than the earth.

火星自转一周的时间比长。

Many types of animal have now vanished from the earth.

许多动物物种现已从上绝。

Jupiter's gravity slingshots the fragments toward Earth.

木星的重力使碎片加速飞向。

The earth rotates on its axis once every 24 hours.

每24小时依其轴心自转一次。

The Pacific Ocean is the biggest ocean in the earth.

太平洋上最大的海洋。

The shape of the earth is an oval.

的形状个椭形。

We use a globe in our geography class.

我们在理课上使用仪。

There are 37 lectures, major headings are geochronology, radiogenic isotope geochemistry and stable isotope geochemistry.

这里有37讲，主要质年代学、放射性同位素化学和稳定同位素化学。