What is the meaning of the often said soy sauce

The meaning of the often said soy sauce is the meaning of passing by, did not participate in the development of things, just a witness, the traditional interpretation of the previous soy sauce are zero-sale zero-buy, take the bottle to the store, how much do you want, people will give you how much weighing. Network terminology is not to talk about politics on the network, do not talk about sensitive topics, has nothing to do with their own, they do not know anything, just use the words back to the post, the equivalent of "passing by". "Playing soy sauce" has become a popular network term, to try to explain its semantics, although the moral really concerned about something, which also has a clear view, but or to protect themselves, or do not care to respond, so to "play soy sauce" as a pretext for a perfunctory work.