fizzle out
phrasal verbfizzle out
- (informal) to gradually become less successful and end in a disappointing way
（顺利开始）结果失败，终成泡影；虎头蛇尾 - The threatened revolt just fizzled out.
威胁的叛乱刚刚失败。 - Her parents are hoping that the relationship will fizzle out.
她的父母希望这段关系能够破裂。
- The threatened revolt just fizzled out.