معنی اصطلاح you win some , you lose some

you can't win them all
you can't win 'em all
/
you win some, you lose some 
(informal)

(ترجمه دقیق رو نمی‌دونم. تقریباً یعنی ↓)
نمیشه که همیشه بُرد. / نمیشه همیشه برنده باشی.

used for showing sympathy to someone who has not been successful or for showing that you accept that you have not been successful

منبع  :

 Macmillan English Dictionary