■ zero-sum game

中文通常逐字译为“零和游戏”。但是实际上不一定一方全无，另一方通吃。实在的意思，是总量不变，你多了我就少了；你拿百分之九十，我就只有百分之十。与此不同的是 win-win game 或 win-win situation（双赢游戏），总量增大，一方得益并不引起另一方受损，反而双方都得益。

• His single-minded dedication to medicine almost guaranteed that his own personal relationships would be correspondingly shallow, a kind of psychological zero-sum game.由于他一门心思钻研医学，私人关系就几乎可以肯定是淡薄的，这是某种心理上此消彼长的游戏。

• north 与 northern
• not
• not
• not
• not...because
• no thanks
• nothing
• nothing if not
• notice
• not only but
• not only...but
• not only but also
• not so much as
• not so much...as
• not so much as... 与 not so much... as...
• not to
• not to inf. 与 to not inf.
• not to say
• not without
• not所否定的范围
• novel
• now
• no 与 not
• no 与 yes
• number