give something your best shot
US /ɡɪv ˈsʌmθɪŋ jʊər bɛst ʃɑt/
UK /ɡɪv ˈsʌmθɪŋ jʊər bɛst ʃɑt/

1.
최선을 다하다, 전력을 다하다
to try as hard as you can to do something, even if you are not sure you will succeed
:
•
I don't know if I'll win, but I'm going to give it my best shot.
이길지는 모르겠지만, 최선을 다할 거야.
•
Even if it's a tough challenge, you should always give it your best shot.
어려운 도전이라도 항상 최선을 다해야 해.