as sure as a gun; almost ninetenths certain; be in the bag; be quite certain of ...; 70 percent sure; have no doubts about; out of ten attempts, nine will be successful.; practically certain; quite certain; the chances are ten to one.; well in hand; 看到他到处受欢迎的样子,他们觉得他当选是十拿九稳的。 judging by the enthusiastic reception given him everywhere, they felt that his election was in the bag