帮我翻译一下哈！！谢谢了

这个短文有点说不清楚状况。
第一，开头的有一个人来到了超市，文章中并未表明是否这个人就是那个贼。
第二，偷完水，这个贼占在门口准备坐着车走，这个车是公车还是出租车也未说明。
故只能给出以下的翻译。
One day,a guy came to the supermarket when Tom and Bob were there, too. They saw a thief stealing a bottle of water and walking out. The thief stood outside the supermarket and was ready to go. At this time, Tom and Bob saw a policeman. Then they came to tell the whole thing. Finally, the thief was caught and his tear fell down.

One day, one comes to the supermarket, Tom and Bob are in the supermarket, they saw a thief stole a bottle of water, and then out the door he stood ready to sit down at the door, Tom and Bob saw a policeman, and then they used to tell the police what pass, finally caught the thief, thief left a tear.
一楼说的不错！！！

One day, a man came to the supermarket, Tom and Bob also in supermarkets, they saw a thief stealing a bottle of water, and then the door he stood in the doorway prepared in a car go, Tom and Bob saw a police, then they past told the police incident, finally put the thief grasped, the thief left tears.