The earth would be a frozen ball if it were not for the radiant heat of the sun.
要是没有太阳的辐射热，地球将会是一个冰冻的球体。
How do we know that the Earth is a smaller ball turning around one of those stars, the Sun?
我们怎么知道地球是一个更小的球，绕着其中一颗恒星——太阳转呢？
All the gravity of all the mass in the cosmos should have been pulling the universe back inward, just as gravity pulls a ball back down to Earth after it's been thrown into the air.
宇宙中每一物体的每个引力都会对宇宙产生一个指向物体本身的拉力，就像在重力作用下，抛向空中的球会被拉回地面。
At Epcot the main attraction (that big giant Epcot ball) houses Spaceship Earth; a ride that takes you back through the history of our little planet.
在未来世界，最主要的景观（巨大的爱波皮卡球）内有太空船地球；星球历史之旅。
If Earth was the size of a basketball, all of its water would fit into a ping pong ball.
如果地球是一个篮球大小，就可以所有的水可以注进一个乒乓球。
The earth is going down and I'm part of the earth and I'm shaking this earth up and down by simply playing with this ball.
我作为地球的一部分，纯粹通过扔球,就能撼动,整个地球。
Since the earth looks like a ball, the sun can shine on only half of it at a time.
由于地球看起来是个球形，同一时间太阳只能照到地球的一半。
Since the earth looks like a ball, the sun can shine on only half of it at a time.
答案：由于地球看上去像一个球，太阳一次只能照到它的一半。
The earth hums to me today in the sun, like a woman at her spinning, some ball AD of the ancient time in a forgotten tongue.
今天大地在太阳光里向我营营哼鸣，象一个织着布的妇人，用一种已经被忘却的语言，哼着一些古代的歌曲。
Well, the wood ball competition is rougher and more competitive than pearl ball. Conducted on bare earth, it creates a lot of dust in the air.
木球比珍珠球更激烈，更有竞争性。因为是在泥地上举行，常会搅得尘土飞杨。
One balanced a ball on the end of its nose. Another dug a hole that went all the way through the earth and fell out on a star on the other side. Still another danced on a tightrope.
其中一只会在鼻尖上平稳地顶着一个球不让它掉下来，另一只挖洞穿越了地球，从另一端掉到星球上去了，还有一只在能在钢丝上跳舞。
One balanced a ball on the end of its nose. Another dug a hole that went all the way through the earth and fell out on a star on the other side. Still another danced on a tightrope.
其中一只会在鼻尖上平稳地顶著一个球不让它掉下来，另一只挖洞穿越了地球，从另一端掉到星球上去了，还有一只在能在钢丝上跳舞。
Enlarge an atom to the size of the earth. The nucleus in it would be only about as big as a basket ball.
假如把一个原子放大到地球那么大，他的核子也只不过一个篮球那么大。
The moon is a ball of cold rock. It is much smaller than the earth.
月亮是一个冷的岩石球，比地球要小得多。
Since the earth looks like a ball, the sun can shine on only half of.
由于地球看上去像一个球，太阳一次只能照到它的一半。
Lets try a comparison: Reduce the sun to the size of a golf ball, the earth would be the size of a grain of sand.
我们来打个比方。假如把太阳缩小到高尔夫球那么大，那么地球的大小就会象一粒沙子。
The use of rare earth ball size pulley ink iron casting, both for the convenience of processing, but also so that the performance of steel pulley with good intensity.
大小皮带轮采用稀土球墨铁铸造，既方便加工，又使皮带轮具有钢的性能强度好。
Let's try a comparison: Reduce the sun to the size of a golf ball. The earth would be the size of a grain of sand.
我们来打个比方。假如把太阳缩小到高尔夫球那么大，那幺地球的大小就会象一粒沙子。
The player jumps close to the hole in the hope of jarring the earth and causing the ball to fall into the hole, which it does.
球员跳着接近球洞，希望能使地发生震动，引起球掉落球洞，他做到了。
The player jumps close to the hole in the hope of jarring the earth and causing the ball to fall into the hole, which it does.
球员跳着接近球洞，希望能使地发生震动，引起球掉落球洞，他做到了。
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