Vic Zhou has been well maintained in recent years, but his upper lip is getting thinner and thinner, so he can't open his mouth.
According to the popular science of some netizens, when people get old, the muscles nearby will relax, leading to elongation. Then because the position of the teeth is fixed, the mouth will shrink a little, which is the lip type of Vic Zhou now, and the lips will shrink inward.
Not to mention, Vic Zhou's acting skills have always been a minor problem. He always can't open his mouth and his lines are ambiguous.
Of course, fortunately, "Song" is dubbed, otherwise, according to Vic Zhou's original lines, it is absolutely impossible to support the role.
On the other hand, the lips shrink back, which makes it impossible to talk about the old problems. Therefore, on the whole, Vic Zhou's upper lip is particularly stiff, as if it won't move, and her face value drops sharply.