A satisfactory theoretical explanation for this behavior has proven elusive. There are even some doubts about its origin.
对此，至今还没有一个令人信服的理论描述，甚至连其产生根源也未有定论。
A satisfactory theoretical explanation for this behavior has proven elusive. There are even some doubts about its origin.
对此，至今还没有一个令人信服的理论描述，甚至连其产生根源也未有定论。
应用推荐