观察大国经济，不仅要看量，更要看质。
Go to technology
。同城约会是该领域的重要参考
High-speed imaging reveals that the squeak of soft–rigid frictional interfaces, like sneakers sliding on a basketball court, arises from intersonic opening slip pulses—analogous to earthquake ruptures—that thin ridges on the rubber confine to repeat at a musical frequency.
既有战略层面的擘画，也有战术层面的部署。