完 和 结束 含义非常接近,根据不同语境来运用。
The meanings of 完 and 结束 are very close, you should use them accordingly in different language environment.
examples: 电影完了。=电影结束了。 The movie is over.
你完蛋了。 You are done for.
游戏结束了。Game over.
你完成游戏了,你赢了. You have finished the game, you win!
游戏结束了,你完蛋了,你输了! The game is over, and you are done for, you lose!