Traduction :
no less than from heaven to the abyss (idiom); differing widely; worlds apart; the gap couldn't be bigger
Référence :
不啻：无异于。渊：深潭。无异于从云天之上到深潭之底。比喻差别极大。
Exemple :
比那辛亥革命，直～远隔呢。（蔡东藩、许廑父《民国通俗演义》第二十八回）
Annotation :
不啻天渊1
1. bùchìtiānyuān :
[EN] no less than from heaven to the abyss (idiom); differing widely; worlds apart; the gap couldn't be bigger
