utched the quilt, her voice filled with both anger and exasperation: "You just patted your butt and walked away, leaving me to deal with this mess""What a mess"Li Chen retorted, "My mother was injured...ces, more refined and upscale, so as to capture the market of wealthy people. As for ordinary people, they focus on efficacy and affordability, small profit margins and high sales volume. A two-pronge...