Try harder next time.下次再努力吧.
Look on the bright side.你得看到事情好的一面.
Don’t take it too seriously!别看得那么严重!
Don’t give up.Beat your brains out.别气馁!尽力去做
Nobody is without his fault.没有人是十全十美的.
鼓励正在做某事的人：
Hang in there!别松劲!
Don’t give up!别认输!/别放弃!
Keep your chin up!要有信心!
That’s the boy!/ You’re doing fine./ You’re doing very well!好样的.
Keep at it!/ Keep on it!/ Go on!坚持下去!
鼓励准备做某事的人：
Just try it./ Just give it a try./ Come on,try it.试试看.
You can do anything if you really want to.只要你想做,你就一定能做得到.
Come on!/ Cheer up!打起精神来!
Do your best!/ Do a good cheer!/ Beat your brains out.尽力去做.