a losing game的用法和样例：
- It's difficult to win a losing game on new rule, too.
- Mr B has returned from Australia and says his going there to dig gold was a losing game.
- We're playing a losing game by trying to undercut our competitor's prices all the time.
- Playing a losing game after) immediately out of the shadows and play a beautiful game, which is very important.
- Love is a losing game.
- I am sick and tried of fighting a losing battle.