1. Makeup and plastic surgery: Qu Limin may change her appearance through makeup and plastic surgery. Make-up can change facial contour and skin color, and cosmetic surgery can change the shape of nose, eyes, chin and other parts.
2. Time and natural aging: With the passage of time, people's appearance will also change. Qu Limin may change her appearance through natural aging, such as losing weight and exercising to change her facial contour and skin color.
3. Media processing: The media may process the photos when reporting, such as retouching and toning the photos, which may also lead to the change of Qu Limin's appearance.
It should be noted that the change of appearance is not necessarily due to the above reasons, but may also be due to some other reasons, such as illness, environmental changes and so on. So don't care too much about other people's appearance changes, but respect everyone's personality and characteristics.