Sometimes, by buying something cheap now, you will be costing yourself more in the long run.
有时候你花了很少钱买了便宜货,但它日后可能要花掉更多的钱。
So far, no man has travelled farther than the moon, but spaceships without people have reach other parts of the universe.
到目前为止,尚未有人到过比月球更远的地方,但无人驾驶的宇宙飞船已到达过宇宙的其它地方。