Many times, you were asked to give the point of view on a problem, the best answer is 'it depends' and it seems to be a widely used key to all questioners' question. I remembered clear that in the year of 2011, when a journalist asked the premier where and how china road and way is in such an international crowd, the premier said, it depends on the nation and consistent with the national circumstances. I can see, in such a case, we couldn't answer it in the obverse side, 'it depends' shows the wide sight of a person, especially when you do not know how to give a reasonable reason that the opposite side want to hear and additional it can avoid the needless quarrel.