IfthereisonethingIhavelearnedovertheyears，itisthatli...
問題詳情： IfthereisonethingIhavelearnedovertheyears，itisthatlifeinthisworldisbittersweet．Ithasbeenandit41__willbe．IrealizedthisearlyandeverydayIseefurther 42__ofit．Itissomethingthatwealljusthaveto43_...