| 释义 |
when hell freezes over
idiom informal
If you say that something will happen when hell freezes over, you mean that it will never happen.根本不可能（发生）
SMART Vocabulary: related words and phrases
Always & never
again
all alongidiom
all-time
along
always
ever
fail
hell
in all my (born) daysidiom
in/through all the yearsidiom
invariably
kingdom
month
on demandidiom
perpetual
perpetually
till/until kingdom comeidiom
till/until the cows come homeidiom
whenever
world
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