Scientists used new data to evaluate ten climate models' predictions of precipitation in China. They found that most models overestimate rainfall in northern China but underestimate it in the south. The models struggle to accurately predict the seasonal and geographical patterns of rainfall, with some showing significant errors in specific regions. By adjusting the model outputs using a mapping algorithm, the predictions better matched actual observations. This study helps improve our understanding of how climate models simulate precipitation, which is crucial for studying climate change.