Have 你 ever been in a situation when something comepletly disasterous happens and 你 say "OH SHIT!" well, when a moment like that happens, 你 cant stop it from happening. when there is an "oh, Shit" moment, well 你 say oh shit because 你 cannot believe what is happening, and also believe that there is no way of stopping it. when a 公牛 jacks its horns right into your sensitive area, well it just happens so fast that 你 cannot believe it. and when a 船, 小船 turns over, 你 cannot stop that,OVERBOARD!!!! When things like that happen, and worse, well its just at that moment 或者 witnessing it, that 你 say, OH SHIT!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!=)