shoot for the moon
shoot for sth是力争做某事，shoot for the moon就是力争达到最高目标，争取做到最好
If you don't shoot for the moon, you'll never know what can be yours.
如果你不力争最好，你永远不知道能得到什么。
try your best
竭尽全力，全力以赴
put your best foot forward 展现你最好的一面
Make sure you put your best foot forward for tonight's performance.
记得要把今天的表演做到最好。
give it your all
在这里表达give something your all或者give something your best shot可以理解为竭尽全力，全力以赴
Life isn't fair, but no matter your circumstances, you have to give it your all.
生活是不公平的，不管你的境遇如何，你只能全力以赴。
