Definition
This idiom is used to express that it's impossible to succeed at everything one attempts.
人生不可能事事顺心。
We tried our best, but the proposal wasn't accepted this time. Oh well, you can't win 'em all.
我们已经尽力了，但这次提案没有被接受。唉，没办法事事如意。
She was hoping to win the award, but she knows you can't win 'em all.
她本来希望赢得这个奖项，但她知道不可能事事如意。
I really want to win every game, but sometimes you just can't win 'em all.
我真的很想赢得每一场比赛，但有时候就是无法事事如意。