Definition
亿分之亿 is a fixed expression used to describe an extremely tiny probability or proportion — literally 'one part in a hundred million parts', but often employed rhetorically to mean 'almost impossible'. Despite the mathematical reading that it equals 1, in everyday language it functions like an intensified version of 万一 (one in ten thousand). It is not normally used as a genuine measure word (classifier), but can appear after 的 in a noun phrase describing a chance or ratio.
m
(fixed phrase) extremely small probabilityone in a hundred million (rhetorical)
Examples
- 亿分之亿。Zhè zhǒng shìgù fāshēng de gàilǜ zhǐyǒu yì fēn.The probability of this kind of accident is only one in a hundred million.
- 亿分之亿。Tā zhòng cǎipiào de jīlǜ jīhū shì yì fēn.His chance of winning the lottery is almost one in a hundred million.
- ，亿分之亿。Kēxuéjiā shuō rénlèi mièjué de kěnéngxìng suīrán hěn xiǎo, dàn juéfēi yì fēn.Scientists say the possibility of human extinction is very small, but by no means one in a hundred million.
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