do everything one's can意思是尽力而为。
还有以下这些同义短语：
1、give sth one's best shot 尽力而为，竭尽所能
2、do / try your utmost 尽最大努力；竭尽全力
扩展资料：
一、give sth one's best shot 尽力而为，竭尽所能
I gave writing my best shot, but I just don't think I can make a career out of it.
关于写作，我尽力而为，但是我觉得我不能把它当作是一个职业。
Don't worry about being new, just give it your best shot.
不要担心是新来的，尽力而为。
Henry gave it his best shot, but the board still denied his proposal.
亨利竭尽所能，但是董事会还是否决了他的提议。
I probably won’t win the game, but I’ll give it my best shot.
我可能赢不了比赛，但是我会尽力而为。
二、do / try your utmost 尽最大努力；竭尽全力
She did her utmost to finish on time.
她尽了最大努力按时完成。
I'll try my utmost to be there for your wedding, but I don't know if I'll have enough money to buy the plane ticket.
我会尽力赶到你的婚礼，但是我不知道我是否能有足够的钱去买机票。
Janet tried her utmost to save the family farm, but the bank foreclosed on it in the end.
珍妮特尽力拯救她家农场，但是银行最终取消抵押品赎回权。