Cari
Closed book
01
buku tertutup, misteri
someone or something one knows very little or nothing about
Idiom
Informal
Contoh-contoh
The workings of the stock market are a closed book to me – I do n't understand how it works.
Cara kerja pasar saham adalah buku tertutup bagi saya – saya tidak mengerti bagaimana cara kerjanya.
The new technology is a closed book to most people – they're not familiar with it yet.
Teknologi baru adalah buku tertutup bagi kebanyakan orang – mereka belum familiar dengannya.
