have a mind of your own
US /hæv ə maɪnd əv jʊər oʊn/
UK /hæv ə maɪnd əv jʊər oʊn/

1.
有自己的主见, 有自己的想法
to be able to make your own decisions and form your own opinions, rather than just agreeing with others
:
•
She always has a mind of her own and won't be easily swayed by peer pressure.
她总是有自己的主见,不会轻易被同伴压力左右。
•
It's important for children to learn to have a mind of their own.
孩子们学习有自己的主见很重要。