Online Dictionary: translate word or phrase from Indonesian to English or vice versa, and also from english to english on-line.
Hasil cari dari kata atau frase: closed book (0.00967 detik)
Found 1 items, similar to closed book.
English → English
Definition: closed book
n : something that baffles understanding and cannot be
explained; “how it got out is a mystery”
; “it remains one
of nature's secrets”