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Chinese dictionary
slunknown; unable to find out; there is no way of knowing
作者是谁,还不得而知。
The name of the author is still unknown.
结果如何,不得而知。
The result is still unknown.
提议的细节不得而知。
Details of the proposals remain secret.
治疗方法是否有效就不得而知了。
There's no way of knowing if the treatment will work.