不得而知

bùdé'érzhī

unknown; unable to find out

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unknown

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unknown

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bù dé ér zhī

adj. unknown, anonymous, mysterious

bù dé ér zhī

v. be unable to find out

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bu4 de2 er2 zhi1

unknown, unable to find out

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不得而知

bù dé ér zhī

can make nothing of it; There is no knowledge of ...; There is no way of knowing.; unable to find out; unknown

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不得而知|不得而知 [bù dé ér zhī] ► unknown ► unable to find out