learn by heart
US /lɜrn baɪ hɑrt/
UK /lɜːn baɪ hɑːt/
成語
背誦, 牢記
to memorize something perfectly
範例:
•
She had to learn by heart all the lines for the play.
她必須背熟劇中的所有台詞。
•
It's important to learn by heart the multiplication tables.
背熟乘法表很重要。