"know forwards and backwards" in Chinese (Traditional)

• 爛熟於心
• 非常熟悉

Definition

對某事非常熟悉，全部細節都清楚；已經完全掌握或記住。

Usage Notes (Chinese (Traditional))

屬於口語表達，用於表示對某事極為熟悉、掌握到細節層面，尤其適合指對流程、知識點等完全掌握的情況。

Examples

I know this song forwards and backwards.

這首歌我**爛熟於心**。

She knows the rules forwards and backwards.

她**對規則爛熟於心**。

Do you know the answer forwards and backwards?

你**知道**答案得非常熟嗎？

He knows his speech forwards and backwards, so he isn't nervous at all.

他**演講內容爛熟於心**，所以一點也不緊張。

You can ask her anything about the project—she knows it forwards and backwards.

你可以問她關於這個項目的任何事，她**都爛熟於心**。

By the end of training, you'll know this process forwards and backwards.

培訓結束時，你一定會**把這個流程掌握得爛熟於心**。