Liu Yan wears a modified cheongsam, has a concave and convex figure, a slender waist, and a proud career line Liu Yan wears a modified cheongsam, has a concave and convex figure, a slender waist, and a proud career line Liu Yan wears a modified cheongsam, has a concave and convex figure, a slender waist, and a proud career line Liu Yan wears a modified cheongsam, has a concave and convex figure, a slender waist, and a proud career line Liu Yan wears a modified cheongsam, has a concave and convex figure, a slender waist, and a proud career line Liu Yan wears a modified cheongsam, has a concave and convex figure, a slender waist, and a proud career line Liu Yan wears a modified cheongsam, has a concave and convex figure, a slender waist, and a proud career line