Taobao's Gravity Cube and Through Train are two promotional tools provided by the Taobao platform. Gravity Cube is a tool that uses Taobao platform data analysis to help store promotion. It can carry out targeted promotion according to store needs and target groups, and can more accurately display store products to potential buyers. Through Train is a CPC (pay per click) advertising service on the Taobao platform that can help stores promote and expose their products. Which tool is better depends on the needs and positioning of the store. If the store needs to show more products to potential buyers and hopes to increase exposure and clicks through advertising, Through Train may be more suitable. If the store wants to carry out more precise promotion and carry out targeted advertising according to store needs and target groups, Gravity Cube may be more suitable. The best choice is to consider the advantages and disadvantages of the two tools according to the actual situation of the store, and choose the tool that best suits your store needs and promotion goals.