Case studies are an integral part of knowledge cumulation. 案例研究是知識累積的主要部分。
Other things followed from time to time, little things of the same sort, which in their cumulative effect were eventually equal to a full revelation. 此後又不斷地發生了其它一些事情，同樣性質的小事情，這些事情累積起來，最終的效果是給人以充分的啟示。
滬公網安備 31011502000490號
電信業務許可證編號：滬B2-20190700
