The specific operation steps are as follows:

1. Under the "Meitu Xiu Xiu" software, enter the "Beauty" menu and select the "Slimming and Face-lifting" function.

2, with the appropriate brush size, according to the need to drag the corresponding position, make the back thinner.

When slimming, we should also pay due attention to the proportion of various parts of the body, such as shoulder width and the distance from the chest to the armpit. For small details, you can choose a small brush to enlarge the photo.