chances are slim.; have as much chance as a snowflake in fire; not a cat's [dog's] chance; hopeless; futile
Related Translations:
渺: 形容词1.(渺茫) distant and indistinct 短语和例子渺无声息 remote and noiseless;2.(浩渺) (of water) extending into the distance; vast 短语和例子烟波浩渺的太湖 the wide expanse of misty taihu lake3.(渺小) insignificant; n
渺不足道: not worth mentioning; insignificant; negligible; too small to be mentioned