They realized it would be suicidal to resist in the face of overwhelming military superiority.他们意识到面对力量相差如此悬殊的军队,抵抗无异于自取灭亡。They were tearing at a suicidal speed.他们以自取灭亡般的高速飞驰着。It would be suicide for the company to try to expand too quickly. 公司扩张过快就等于是自取灭亡。Trying to please an audience is the kiss of death for an artist.试图取悦观众对于艺术家来说无疑是自取灭亡。