Exceed your customers' expectations. If you do, they'll come back over and over. Give them what they want — and a little more.
与病毒的斗争是自然与人类智慧之间的较量。
"Books are the quietest and most constant of friends; they are the most accessible and wisest of counselors, and the most patient of teachers."
中心地的六边形排列最小化了市场区域的重叠。