Give it your best shot
全力以赴；竭尽所能；尽力一试吧
例句
1.It's going to be hard,but give it your best shot.
事情会很难,你尽力然而为就是了.
2.Go ahead.Give it your best shot.
说吧,拿出看家本事来.
3.Sam:Yeah.Don't worry.Just give it your best shot.
山姆：是啊.不要担心,竭尽全力就好了.
4.Heed their counsel,accept their invitation,give it your best shot,and I'm betting you'll never go back.
留心他们的劝告,接受他们的邀请,尽己所能,我敢说,你绝对不会后悔!