基本无害

In the dark and distant space, a planet called Earth existed in the up-and-down focal position with a changing probability. At the edge of the solar system, the anxious Gray Blond sat on the green leather sofa, impatiently watching the rows of TV and computer screens. He was in depression. His mission was to watch the Earth, in secret. ""Is the Earth alive or not? We have spent so long time looking for it, only to find that some planets look like it, and not completely. The worst one was called Mom Star where a little animal bit me. Of course, in half of the time, the Earth did not exist, because it was burst into scraps by the damned Vogons. Can you understand me?"" said Arthur. But Ford didn't answer, for he was listening to something else. He gave the guide book to Arthur and asked him to look at the screen. The screen read like this: ""the Earth, mostly harmless.