The development of science and technology makes a difference to people's life. The creation of special robots has helped farmers a lot.
The population on the earth grows larger each year. As a result, more and more food needs to be grown in order to feed everyone. Because climate (气候) changes all the time, it's becoming even more difficult to grow more food. When farmers tried to grow more food in the past, some farming methods were used. However, those farming methods weren't always healthy for the environment. In fact, they were harmful to the environment sometimes.
Could this problem be solved? Some scientists spent several years talking to farmers. They wanted to see what problems farmers were having and how these problems could be solved. This led to the creation of special robots. These special robots move around on farms and collect information about crops (庄稼). They can take pictures of plants and track (追踪) each plant's growth.
By collecting information about plants, the robots can help farmers predict the growth of the plants. That means farmers can know how their plants will grow. By studying each plant, the robots can also help farmers look after plants better. For example, if the robots find out which plants get sick. farmers can quickly throw them away before they are about to influence other plants beside them. With the help of these robots, farmers can take better care of the plants in need.
